How to prepare: Wheat, rye, and oats for mushroom grain spawn
Vložit
- čas přidán 9. 09. 2024
- Boiling produces the most reliable results when hydrating large cereal grains for spawn production. Boil until the starchy core has turned from white to translucent, then dry long enough for the surface to roll freely, and free of moisture.
this process is the same for common large cereal grains used for spawn production: Wheat, oats, and rye berries.
load jars with approximately 3 cups, then sterilize in your pressure cooker or autoclave for 2 hours @ 15-18 psi.
Allow to cool overnight, then unload and inoculate. Jars must be at room temperature before inoculation, it's always advisable to allow cool-down to take place within the sterile environment of the sterilizer.
A note on soaking: Soaking does not soften, "hatch", or reactivate bacterial endospores. Soaking, if anything, can potentially trigger endo sporulation (spore formation). Boiling alne is sufficient to hydrate, ensure that grains are cleaned prior to boiling.
I know all this stuff but I enjoy hearing and seeing how other people do things. Good video 👍🏼
I began learning about cultivating mushrooms about a year and a half ago and never found any grain video as solid as this one. Thanks for explaining why you don't put the weight on the pressure canner until 15 minutes after the valves have popped up. I've never heard anyone talk about this and it makes sense.
As does adding the extra half hour.
Definitely going to keep this one in my library and share list 👍🏼
Your work space is awesome
Great explanation mate, just wondered whats the shelf life of the jars you dont use straight away?
Cheers
Very nice set up super clean
I like to use a bag of beer to rinse the grains.
5:50 Did I hear grains falling to the counter? 😂
Cool video man. Keeping the grains in a pile to drain and maintain thermal mass makes much more sense than laying them out to dry. I'm going to give this a try.
Have you ever noted a difference in prepping regular wheat and hard wheat?
I don't use hard wheat but iirc it is a bit more difficult to hydrate, but it works.
How much water do you fill into your pressure cooker pot when you do this? I happen to have just bought that same pressure cooker and I'm not sure how much water to put in it. thank you.
3 quarts
Essentially you need enough to not run out while not submersing the jars. Steam under pressure reaches higher temperatures than the boiling point of water which is where the sterilization comes from.
@@StipeCap Thank you I think thats a little less than I put in I used 5 quarts. 3 is safe? thx
@Mushlove1213 3 quarts is what the manual says to use. 3 is plenty.
What type of filters do you use on the jar lids? Thank you for the video!
29mm Synthetic filter discs.
Can milo be done the same? I'm having a hard time dialing in milo/sorghum
Really just simmer until the expand...same shit after that. I haven't really need to boil it. They bust too much when you do. Not as dirty as wild bird seed either.
Awesome video. Where did you get those sink strainers? I've been using a window screen (literally) and it's just a pain to clean.
Either the dollar store or the hardware store, I don't remember which, but they should be relatively easy to find.
On a 150L auto-clave,and after venting for about 30 mintues, what would you recommend as my cycle time? Ive been trying 3 hours sterilization cycles after venting is complete.
Is it possible to sterilize for too long?
Both spawn bags and sawdust production blocks should be cycled for 3.5-4 hours, jars for 2 hours.
Do you leave the lids loosened during the PC cycle? And do you hot shake after sterilizing?
These lids can be finger-tight, no need to keep them loose during the PC cycle. The more flimsy lids should be kept loose to avoid warping.
No need for a hot shake. Let the jars cool in the PC, and shake them before placing them on a shelf or after inoculation.
Whats your experience with corn...vs oats?
Corn is very clean but is too large with too few inoculation points for my taste. Oats can be troublesome, it depends on the source.
I don't recommend either.
Huh? I have not had a problem with oats. Trying to see of going to corn was worth it. Doesn't sound like it though. I rarely have contamination issues. Can I ask what your grain preference is? Seems like my cultures actually do better when I switch things up once in a while. Not wbs or rye thought. Rye is kind of a pain to get right and is ridiculously expensive here. Everyone keeps talking about this drippy tech which seems pretty dumb but you kinda confirmed my suspicions. Not worth it really.
@timdesoto3138 99% of people lack a fundamental understanding of fungal metabolism and life cycle, the "dippy tek" is ridiculous.
My preference is wheat or millet.
@@StipeCap wheat is cheap and readily available I just started spawning with it things are awesome so far😁👍
Are they over hydrated if I feel starchy residue on hands when drying?
Yes, but they should dry out a bit if you leave them overnight.
What do you do with all this? Is it for growing mushrooms??
Food for mushroom mycelium.
Can I take the jars out after the pressure lock drops if I want to run multiple cycles in a day?
Yes, absolutely.
@@durrdoydurrdoy5512 cycles? You don’t double pasteurize do you? Ormore different jars do you mean? Sry trying to follow along
Do you recommend to soak first?
Soaking is not required when boiling, it's actually a waste of time.
@@StipeCap same for rye? Thinking about trying boil only and then PC :D
@@marvin216 Yep.
@@marvin216 i have not tried boiling In place of soaking btw my portobello bags love the hydrated lime pasturized straw
Straw is much different than cereal grain spawn.