One of my students did the same thing you did. his 55 gal steamer was running and he forgot to turn on the water. When he turned on the water it pullee a vacuum and crushed the drum. Steam is some powerful stuff! Those fittings are bulkhead or weldless fittings and the quick connectors are called cam locks for anyone looking into it.

@OakandSpore

4 жыл бұрын

I am thinking a thermal fuse submerged underwater might be a good idea. One that will melt at 110c and kill the power if the water boils dry.

@MyersMushroomsFarms

4 жыл бұрын

@@OakandSpore if your going that route, have it be the signal for your SSR not the high volt load wire. Should be a lot cheaper that way too.

@OakandSpore

3 жыл бұрын

No, you want to use a proper autoclave for that.

Get in there mate! Loved the safety crocs.... Really appreciate your to the point and generous sharing of techniques. This is what KZread should be about...

Thank you for linking all the parts! Best mush channel on KZread. So excited to up my game, I will be using my pressure cooker filled with water and a propane burner as my boiler instead tho

Your a mad genius, I love your stuff !! Thank you for the video !!

Oak and Spore - the answer to the question "How do I learn about growing mushrooms AND laugh my ass off?" Thank you Tom! I'm sat here watching all of your videos rather than other mushroom channels, because they're the most fun :)

@OakandSpore

3 жыл бұрын

Thanks Corina! I am glad you enjoy my videos :D

This is an awesome setup! Also, I LOVE your t shirt!

@OakandSpore

4 жыл бұрын

Cheers mate!

Hey man I finally got round to building one of these setups myself and I just wanted to thank you as your video here was instrumental. Works pretty well since brewing equipment is high quality. Thick Stainless was a ball ache to drill though!

@OakandSpore

3 жыл бұрын

Hey dude! Glad you could find my videos educating enough that you went and built one! I stuffed one drill bit before I learnt that you need to drill stainless very slowly to stop it from hardening!

@trees69

3 жыл бұрын

@@OakandSpore I had to work a few things myself out in the details but the video is certainly educational. Understanding all the brewing equipment and feeling confident to do the wiring on the heating element and PID controller was steps not included. Even tips on drilling stainless pots, the info is out there it's just all scattered, which is why a video like your where is useful. If you ever make another video on these I think others would find those things useful. Hail to small grows!

Thanks for posting this! I am making one with an 80 qt pot and a 1" steam pipe. I'll be using steel pipe between the pot "boiler" and pasturization chamber. I'm hoping to use it in conjunction with an old deep freeze to sterilize mushroom bags for my mushroom business. We'll see what happens. Either way it will work with a drum if the freezer doesn't work out. I appreciate your efforts!

That's a pretty nifty system you've built there. 30 years ago I made something similar for generating steam to pasteurize straw and compost. Set a 30 gallon metal trash can I'd insulated and brazed a steam output tube to, on a propane burner and ran a hose into an insulted box I'd built that could handle a whole bails worth of chopped/wetted straw or hundreds of pounds of compost. Yours is much more professional looking I have to say. 🍄

Excellent. Keep working hard

@OakandSpore

4 жыл бұрын

Thanks for the support!

Nice system, thanks for the video. To prevent dry run, you might want to look into adding a thermal fuse at 130C/150C. I have one on my barrel sterilizer and it saved my unit already once when the valve disfunctioned.

@OakandSpore

4 жыл бұрын

That is a good idea. Do you have any specific ones you can reccomend?

@themushroomcircle-3995

4 жыл бұрын

@@OakandSpore I used 10A 150C, because it fits in the thermostat hole of my 2kw heating element. For your bigger one you'll need 16A/20A.

@HolyBongWater1

Жыл бұрын

​@@themushroomcircle-3995I'd like to see a video on it

great vids, Im just starting out with buying kit - now added crocs to the list.

Awesome video thanks man

Awesome, thanks for sharing

Great video. very informative.

@OakandSpore

4 жыл бұрын

Thanks for watching :)

3:36 Early warning 20kg weight plate system installed there as well, basically if one of those plates hits the roof, you know something has gone wrong with the sterilizing rig.

@OakandSpore

4 жыл бұрын

Chernobyl all over again...

@zreeder21

3 жыл бұрын

I can't breath

Wish u went over how the thermocouple and PID are hooked up and work

@jasonm.1370

3 жыл бұрын

Im having issues

Very nice!

loved the vid, i'm thinking about building one just like yours, thanks a bunch

@OakandSpore

4 жыл бұрын

Go for it!

@garydavis9845

4 жыл бұрын

@@OakandSpore cheers, can i ask a few questions, if you ahve an email id like to follow your template :-)

Nice mussels mate, if you keep it up you will me Mr Olympia in no time.

@OakandSpore

4 жыл бұрын

This video features no seafood, sorry Mr Capon

@weenev

4 жыл бұрын

@@OakandSpore Lol, sorry my spelling is not so good. Maybe you need some mussels to help build those muscles.

God I am so jealous of your setup

Great vid mate. Very helpful. Where did you source the stainless barrel from?

I loved you in “District 9”.

new zealand humour are the best!

Absolutely love it sir, what kind of heating elements did you use in the heating side??? Budget diy is my specialty so this is just epic 😎 👌 😍

inspiring

yeah boi!

Very cool

@OakandSpore

4 жыл бұрын

Thanks!

Brilliant

@OakandSpore

3 жыл бұрын

No you are.

This is what I've been looking for. Thank you so much. I can't wait to bring gourmet mushrooms to my area. How much did that this your electric bill and how many days a month do you run it.

@OakandSpore

4 жыл бұрын

Thanks mate I run it twice a week, and my power bill is maybe 120usd per month for my whole operation.

@ranajazzz

3 жыл бұрын

@@OakandSpore is there no scope of solar or some alternative renewable power source . Cost could be a factor but I hope over time it will be economical

i love the OSHA approved steel toe crocs lol

excelent

I think you might want to turn the wrap around? The metallic part does IR reflection, so I'd think that would be a better internal layer, and then the closed cell foam on the outside to prevent conduction and convection? Maybe some ME that knows thermodynamics better could chime in and help? Either way, really awesome setup mate!

@OakandSpore

3 жыл бұрын

I would defiantly like to know of that's the case! I would have thought the foil side would still reflect the IR even through the foam.

I have a 150L autoclave with the element in with the water and substrate (ie a pressurized bubba's barrel). I am terrified of the water level. Luckily it only uses about 1/2 cup of water a cycle (no constant venting as it is in my house!) and takes 7 gallons of water as a reservoir so I can forget about adding water for weeks. Dirt cheap from alibaba. Healicon brand. I'll make a video of it for you

@OakandSpore

4 жыл бұрын

Please do! This is what I need. I have an All American autoclave that uses like a cup of water each time, it's brilliant.

Great video! What kind of pressure regulator are you using on the end of that braided hose that’s attached to the float valve

If ya cant tell ive been working on my own. Thanks so much for this video and the others. Theyve been a big help. One more question for you....what caused you to use that size pot for your streamer? Would you see a benefit of a smaller or larger one?

@OakandSpore

4 жыл бұрын

I used it because it was large enough that I could easily attach fittings to the side. Any smaller and the curvature of the pot stops a bulkhead from making a snug fitting, and they tend to leak.

@sporeyourowngood9694

4 жыл бұрын

@@OakandSpore thanks for the response. That makes sense. So a larger pot with less of a curvature would be better for the seal. I appreciate your videos. They've helped alot. Thanks

Thanks for your work and videos..I just don't understand where your PID is connected, to the barrel or to the steam generator? Thanks for advance for the answer, it will help a lot.

Cool video! Slowly getting everything I need to start growing. Quick question for you if you don’t mind, have you ever heard of someone adding spawn to sterilized grain instead of using a inoculation syringe or culture?

@OakandSpore

4 жыл бұрын

Yes you can inoculate sterile grain with existing grain spawn! You don't want to keep doing it too many times though.

@fredluden2298

4 жыл бұрын

Oak and Spore Mushroom Farm thank you so much! I didn’t know if it would be to high of a contamination risk. I’ve only used pre bought syringes. It seems like it might be easier to just grow culture and leave it in the fridge so I can always have fresh spawn and not have to worry about the old stuff breaking down. I can also still use the syringes so I don’t have to worry as much about contamination

@musicislife0728

4 жыл бұрын

Ark Survivor there’s definitely contam risk if you’re doing a (colonized) grain-to-grain (sterilized) transfer so be sure use a flowhood or still air box and not to leave the jars open any longer than you need to! Happy growing🤘

Hey mate , made one of your steam boilers , thanks for sharing your knowledge , mine has a small hole to allow steam to escape , it seems to reach a maxium of about 92 degrees celsius , was wondering on what sort of temperature your aiming for and how long at the temp to sterilize , thanks in advance , keep up the good videos, have learnt so much from them , thanks

@OakandSpore

3 жыл бұрын

Hey dude, glad to see you made one! I set mine to 95c, and keep it there for aroudn 24 hours. I tested it at 92, but found I got a bunch of contam, so put it back to 95. If you want hotter try to insulate more. Otherwise just sterilise it for maybe 26-30 hours at 92.

@Skipjacktunainacan

3 жыл бұрын

@@OakandSpore , Thanks , will insulate it , to push the temp up a bit , was happy with the trail run , can't wait to fill her up , she's sitting nicely at 93 celcius and have it controlled of a brewing controller that's rated to 140 celcius powering a 2200 watt element , keep up the good work love your channel

Awesome! Are you planning on showing us your PID control box/setup? Also, what size fittings are you using for your water inlet and Tri-clamp? This is fast becoming one of my favourite channels. Cheers.

@OakandSpore

4 жыл бұрын

I actually had filmed it but it was really out of focus, so I figure I will make a seperate video showing it. It's a copy of Myers Mushrooms PID controller, so I can't really take all the credit for it. The braided pipe should connect to the back of the float valve.

@MyersMushroomsFarms

4 жыл бұрын

kzread.info/dash/bejne/p3esmJOle5qzlKw.html

Love the vids Bro, question. Can you use a steel drum? Notice your one is stainless? Cheers

@OakandSpore

4 жыл бұрын

You can, it'll just rust out fast.

Hey man. Great set up! Jw if you've finessed the sterilisation time yet? If so what have you got it down to? :D

this guys got jokes lol, great video thanks for the info man

@OakandSpore

4 жыл бұрын

Cheers bro!

@dnfmotocross7571

4 жыл бұрын

@@OakandSpore would you say this is possible to run the boiler with a gas burner? i feel like it might be cheaper then electricity.

@OakandSpore

4 жыл бұрын

Possibly, a you wont be able to control the temperature as much so it will probabley end up costing more. My element only turns on for about 4 seconds every 10 seconds.

i think this is better than a bubbas barrel. you can seal it which is great if you cant let the sterilizer cool down in a lab while the bags cool since they be sucking in air during that cool down. also you can make more than one barrel an rotate them out which is amazing. also you dont have the element an so forth in the same container as your substrate so you get more volume out of you barrel and can load more grain.

@OakandSpore

4 жыл бұрын

Bubbas barrells have their purpose and niche. I originally made one like bubbas, but after I nearly set fire to the substrate on the inside I decided to make the boiler separate.

@johnandjacquelinewarren9979

2 жыл бұрын

I would still think you wouldn't want to completely seal it during cool down or the air inside shrinking as it cools would create a negative pressure issue - similar to what happened to the collapsing boiler but much less extreme and sudden (I imagine?). But maybe it isn't getting hot enough for that to be an issue? But I had the idea to seal it up completely with the exception of a small port with a filter on it to allow a small amount of air exchange just so that pressure can equalize but still keeping contams out of even that little opening... On the flip side, having it opened up more to the surrounding air would help it cool down faster if you were in an environment where you weren't worried about contams.

If you can condense the excess steam and pipe back into boiler it may minimize minerals from building in boiler

Crocs? My good sir, it's your short shorts that are distracting me. All joking aside, I love your set up. Cheers.

@OakandSpore

4 жыл бұрын

We call them stubbies. Google 'kiwi stubbie' and you'll see them and their glory

Hello! Thank you for the video! Mush appreciated. I am trying to place a Amazon order so I can replicate this setup. I have locally sourced a 55 gallon drum. But plan to order everything else. Just to be certain before I place the order. Do I need 1 of everything in the list? Or is there some doubles? Thanks!

Hi thanks for the detailed build info I have been using a similar build using a tea urn as a steam generation that also works fantastic I have now decided to install a pid I used the ink bird one but the settings are a little confusing could you list your settings please 👍

@OakandSpore

3 жыл бұрын

Do you have a link to the tea urn?

The bright side should be facing inwards maintain maximal heat 👍

Have you run into any contamination issues with steam sterilisation vs pressure sterilisation for slower growing mushrooms such as shiitake?

Want to see how much revenue we make from selling mushrooms? checkout this link 👉 www.oakandspore.com/farmforprofit 👈

Do you have to worry about that ball valve lowering and touching the element? If it touches will it short the unit?

I really like this safe approach. Do you think the boiler is enough to steam 2 barrels at once?

@OakandSpore

4 жыл бұрын

No, really only 1 barrel. My bottle neck is that I can only do a single 55 gallon drum at a time.

@MyersMushroomsFarms

4 жыл бұрын

with a bigger element sure you could hook up 2 or 3 drums. You would want at least 1500-2000w per drum.

@thebluetravelers7544

4 жыл бұрын

Wouldnt a 55 gallon resealable lid drum be better for the boiler And even cheaper?

Hey @OakandSpore, Thanks for all the info and the videos, really helpful! I’ve got a question, if you’ve got the time and knowledge, I’d be thankful for your reply. I’ve built an as exact replica as I could of yours. I’ve tried it a few times (with an empty barrel), but never gotten up to a 100c. My analog thermometer measure 97c and my digital one (PID) measures 92c(set the PID at 100c). My question is, if I’d fill the barrel full of bags. Would that help bringing the temperature up? I’m thinking less space to fill with steam and once the bags get hot, they help keeping the barrel warm. Please correct me if I’m wrong and what I can do to solve the problem, if it is a problem. Many thanks, Martin

Did you use any kind of special fitting for securing the float valve to the stockpot?

Nice setup! What's the status on your morel experiment? Is a video coming soon I hope 😎

@OakandSpore

4 жыл бұрын

Spoiler alert, It failed. But I have managed to grow from the spores of a dried morel which looks to be growing sclerotia on a petri dish, so it'll be round two of the experiment!

@Laotzsa

2 жыл бұрын

@@OakandSpore there are a few patents on proper cultivation of Morel, one in US and one in Asia somewhere, as far as I’m aware, slight adaptations of these patents are necessary not to infringe but if I remember correctly; one of the patents is about to run out (; I’ll race ya!

Can you tell me how high the intake hole from the bottom is? I found a brewery pot that has a precut whole 5.5in (14cm) from the bottom. Would that be to short for the same ballcock valve design you have?

How long do you steam your substrate bags?

@OakandSpore

3 жыл бұрын

About 24 hours

Wouldnt be better if the pipe is at 45 / 75 ° going up to the steam tank? Becouse of the condensation in the curve of the pipe (?

May be building myself a simular setup, I am curious as to what those stainless barrels are used for, to give me a idea where to go looking for them... Brewing industry I am guessing?

@OakandSpore

4 жыл бұрын

They were for honey I believe. But they were far to expensive, I have a new plain old steel barrel which I am going to turn into a third steam drum. Steel does rust, but It should last a year or two, and it was only $20.

@jrkilde

4 жыл бұрын

@@OakandSpore, add a zinc anode to prevent rusting. Just like your water heater in the house.

This is great! I'm gonna build one:) I'm thinking that one could use a HDPE barrel as steamchamber as long as temperature does not exceed 130c° it would save a lot of money, those stainless barrels is very expensive, but also very awesome.. HDPE might take forever to cool down tho..

@OakandSpore

3 жыл бұрын

I looked at hpde and other plastics. I was unable to figure out if the plastic would stay rigid at near 100c, so went went stainless.

@coconutfleetsleeper5717

3 жыл бұрын

@@OakandSpore yes im having the same concerns, I've been told hdpe can take around 106° without losing it's rigidity. However the question is if it can take it for extended time. I will try it as soon as I've constructed the boiler, and come back with my result, for science! :)

@johnandjacquelinewarren9979

2 жыл бұрын

@@coconutfleetsleeper5717 I'm curious if you ever tried it? At atmospheric pressure, steam cannot get hotter than 100C - at sea level at least. 🤔

@coconutfleetsleeper5717

2 жыл бұрын

@@johnandjacquelinewarren9979 no i never tried it, got hold of a stainless insulated chamber/canister from a company that used to make cheese/yogurt and such, 2,4m3 for no money what so ever. Id still love to know if you guys go through with it, besides how the plastic behaves under heat, analysis of the condensed h2o vapour would be very interesting to see:) My points of concern would be where the tubing meets plastic, there might be higher pressure/temperature there? -l dont know or make any claims, im a layman at best. If you try it out, For the sake of shroom and science share you experience:D

@johnandjacquelinewarren9979

2 жыл бұрын

@@coconutfleetsleeper5717 yeah, if I happen to end up building one and go that route, I will try to remember to come back here and post some results.

Where do you plug in your PID sensor, the 10-gallon kettle or the 55-gallon barrel? Do you make an extra hole for it or slip it under a lid?

@OakandSpore

4 жыл бұрын

It's in the 55 gallon, with a small hole drilled through the side about 2 inches down from the lid, with a small nut holding it in place.

Super video Mr olympia , what if the tank is made from plastic? U know the blue tanks for rain water, .. could that do the thing? Or would the steam make it melt? I wil find this out, no need to answer on that, anyway, cool video

@andrewclancy8834

4 жыл бұрын

It will melt

Thanks . What temperature programs do you use? Or does the serializer run continuously for 24 hours? Thank you with best regards Ruslan from Hamburg

@OakandSpore

2 жыл бұрын

I use a PID to control temperature

What is the contamination rate of the bags when you do low temp sterilization like that, compared to pressure cooking, in percentage? I finally made boiler inspired by you. 2821 liters capacity steam room reached 99c in 50 mins with two propane burner boilers, and so I built 3626 liters room this time.

@OakandSpore

4 жыл бұрын

my contam rate is near zero. I find spawn contams easy, mushroom substrate bags are more resistant to contams.

Can you use a setup like this to sterilize bags of grain spawn? Second question: Does it not need to be pressurised to sterilise properly? Cheers!

@OakandSpore

4 жыл бұрын

Yes you could. You do not need pressure, you just need to cook it for longer if you don't use pressure. Google search the thermal death curve.

Ok do you cool your bags infront of flow hood or just in the drum? Seems like some people want there drums in same room as the flow hood

@OakandSpore

4 жыл бұрын

Just the drum. My drums are on castors so I wheel them into the clean room.

How did you get the pid sensor into the steam barrel? Drill a hole and RTV silicone in place? Also I guess RTV silicone fine for the boiler lid as well?

@OakandSpore

4 жыл бұрын

The thermo probe is threaded, so I drilled a hole and placed a small nut on it to hold it in.

Hi everyone! We've almost done with our setup , we built the steamer and now wondering what should we choose as a barrel. We only found 100 litres barrels around (we live on the island) that is not enough for our needs. We got this crazy idea to use an empty freezer as a box for sterilization. What do you think? Will it work? Thank you for the videos! It really helped.

@OakandSpore

3 жыл бұрын

Try it! The plastic might deform under the heat, but maybe it won't. You can only try. Let me know how you get on!

@huertocanario78

3 жыл бұрын

@@OakandSpore Thanks! We got our hands on second hand chest freezer it's actually covered inside with some sort of aluminium so no plastic. Will let you know if that works when done! Happy new year!

@johnandjacquelinewarren9979

2 жыл бұрын

@@huertocanario78 So did it work?

Hello, can you share please some bag with filters suppliers? Thank you!!

That is a rollsroyce steamer. Im looking at building one to clean up beekeeping equipment

@OakandSpore

3 жыл бұрын

Mines still going strong!

@johnandjacquelinewarren9979

2 жыл бұрын

Ooh! As someone hoping to get my family started in both growing mushrooms and doing a little beekeeping, I hadn't even considered the potential overlap. 🤔😀

What type of barrel did you use? I noticed the lid looks like it has dome shape on the underside of it. I am looking at purchasing a used 55gal food grade barrel

How did you wire up the heating element? Did you use a thermostat? Or did you sinply just wire it to a 110 outlet without a thermostat?

@bobneil3716

3 жыл бұрын

Citizen 2020 he said he is using a pid controller. You can buy a prefab one or kit off amazon. The heater would just be wired to a wall plug and plug into the pid. The pid plugs into the wall. The thermocoupler monitors the temp. The pid modulates power to maintain the temp.

is there any reason we couldn't just use a pressure cooker attached to the barrel instead of a DIY boiler?

@briholt100

3 жыл бұрын

My bets: 1) it would wear out the larger fancier barrel faster, small pots are cheap to replace and 2) you could not use it while it's cooling down. Having the boiler separate means it would cool faster than the grain barrel and you could start a second grain barrel while the first cools.

I've read a little about using fermentation process to part sterilise substrate, ever experimented with that?

@OakandSpore

3 жыл бұрын

No. Using steam is easy and straightforward.

What are good substitutes for steam tank other than stainless steel? Can regular steel barrels work or how about plastic like trash cans?

@OakandSpore

4 жыл бұрын

They would work, just might rust out fast...

Check out the crocs light ride pacers... Best shoes in the world ... I where them in water and at the store

@OakandSpore

4 жыл бұрын

I'll check them out!

@Oak and Spore Mushroom Farm How much time do you run it now?

How big is the hose for the steam pipe? Is the diameter of the Steam pipe important for efficiency ?

I'm sure its amazon mixing things up But did you now on the items list that the element is a 2" link now and the tri-clap items show up as 1.5"? Also a few dead links ;)

What is the coldest outside temps you've ran this setup? Wondering if it would be struggling in very cold temps.

The link for the triclamp fitting is not the same size as the heating element! Triclam is 1.5 inches and heating element is 2 inches.... Am I missing something here?

Hey bro I have copied your setup exactly, I’m just wondering what temp do you set the PID at and and how often does the element turn on and off or is it constantly on? And where do you mount the probe for the PID I couldn’t see it mentioned in video, you have brewing thermometer and pressure valve on top but where does probe go? Thanks a lot love the videos

@OakandSpore

3 жыл бұрын

Mount the probe at the top of the steam barrel, not the boiler barrel. I set mine to 95c, and it runs for about 4-5 seconds, then turns off for about 5-10 seconds. If its really cold outside it turns on more often. When its heating up it's in constantly till it gets to 95.

@jaaydubs

3 жыл бұрын

@@OakandSpore thank you very much for the fast reply brother, I have 1 more question for you, if I am doing a grain batch and just sterilizing grain in this thing do you think a 24 hour run time at 93C + will suffice or should I go longer? I have a solar array so power is free and consumption isn’t an issue

@OakandSpore

3 жыл бұрын

Possibly, you always want to be more careful with grain spawn as it contaminates easily due to the high nutrition. You will just need to try and see how you go. I use an autoclave for my grain spawn.

What type of bits did you use to drill stainless steel?

Is this sterelizer still recommended by you after 3 years for a beginner? Any changes that you would make?

I'd imagine this works well for pasteurizing substrate as well?

@mattrogers3250

3 жыл бұрын

Long story short, this setup most likely is actually pasteurizing not sterilizing. My understanding is that this setup can achieve sterilization after longer periods of time. Running it for only a few hours will achieve pasteurization or possibly super-pasteurization. Sterilization is typically 121°C (250°F) at 1BAR (15psi) for an hour. Really depends on what you're sterilizing because the center of your object needs to reach full temperature. A piece of glass will take only a few minutes whereas 5 pounds of grain inside of a bag will take much longer since the steam doesn't reach the very center of the bag. This setup is designed to not build pressure in the steam chamber for safety reasons. There will probably be some pressure but not too much. So at atmospheric pressure, steam only gets to the boiling temperature of water which is 100°C or 212°F. This is plenty to reach pasteurization but not sterilization. Pasteurization starts at 60°C/140°F but I think the recommendation is 70-82°C (160-180°F). The idea behind pasteurization is to let beneficial microbes survive that help the mushroom spawn get going and out compete the contaminants. That being said, a chamber like his will theoretically over pasteurize and kill the beneficial microbes which means contaminants have a nice breeding ground. But that's essentially what sterilization does. So really, it seems like pasteurization is the better option. There's another technique where you do pasteurization multiple times over multiple days to achieve sterilization. Basically you allow the microbes to germinate and then kill them and then repeat until all have germinated and then been killed. That's my understanding of pasteurization and sterilization and I don't know exactly how that manifests in the real world.

What is the surface area of your safety valve and how many PSI have you calculated to vent at with your ballast weight? I need to build a larger output unit (oil fired) that needs to run at 3 psi or less and considered the same gravity/ballast relief plate. It’s explosion proof! Thanks for your reply.

@OakandSpore

11 ай бұрын

I use a new unit now, I have it in a later video. It uses weight as well, and will vent even with a small amount of pressure. Very safe.

What kind of tape did you use to stick it all together?

Do you every get substrate batches contaminated with bacteria or other fungi/mold? I was under the impression that to fully sterilize the substrate, you need to expose it to high pressure and high temperature?

@OakandSpore

3 жыл бұрын

I never get contam. Most contaminants can generally be killed at a lower temperature, you just need to apply the heat for longer. Google Thermal death time.

What kind of temperature controller are you using?

What float valve are you using? Have you had any problems with it? I am looking at these online and it's hard to know which are complete junk.

@OakandSpore

3 жыл бұрын

I think I have a link to it in the about section.

Can I use this to sterilise grain bags ?

Just curious, does anyone use these low pressure steam set ups to sterilize spawn? OR is it just meant for substrate? Also, does it actually sterilize what goes in, or is it meant for pastuerization? Too many people use the word sterilize loosely and I'm just trying to figure out what they are capable of.

@OakandSpore

4 жыл бұрын

You can sterilize at lower temperatures, it just takes longer. Sterilizing at 125c means you can do it in minutes, sterilizing at 95c means it takes many many hours, and may not totally kill some strong bacteria or contams. I don't sterilize spawn in these, but you probably could. I use an All American autoclave for my spawn. Google thermal death curve and you can get get an idea of sterilizing times at different temperatures. There are kept a couple degrees below boiling.

@jeffreydauhmer385

4 жыл бұрын

@@OakandSpore Solid reply, Man. I hope you do get Mr. Olympia. Just to be clear. They are safe for grain spawn, it just takes a very long time?

Where did you get the main stainless sterilising drum from?

What is the PID controller and how can I get one

What kind of valve is that on your barrel behing the quick connect? The connection for the steam line to the barrel. Thanks.

@OakandSpore

4 жыл бұрын

It's called a bulkhead. Search websites for home brewing equipment, that's where i get all my fittings from.

@sporeyourowngood9694

4 жыл бұрын

@@OakandSpore i did. Thanks. Ive already ordered it. Was supposed to be here yesterday. But shipping is all messed up currently

how did you drill through the stainless steel? I'm failing miserably at drilling through it with a cobalt tipped bit right now

@OakandSpore

2 жыл бұрын

Very slow, use lots of oil. The second the stainless heats up, it hardens, and you won't be able to drill it.

Where is the temp sensor for the PID mounted? On the top/output of the second chamber?

@johnandjacquelinewarren9979

2 жыл бұрын

I know I'm a year late but yes, he mentions it at about 4:25 🙂 it gets disconnected and reconnected whenever he switches out barrels.

@OakandSpore

2 жыл бұрын

Better late than never!

This will sterilize grain bags too right?

Can you use and old oven as a dry heat autoclave?? As long as it can hold the temp??

@OakandSpore

Жыл бұрын

No