Try this. It’s a substrate recipe I made up a few years ago and has proven results by many, time and time again —
Here is a recipe that has worked well for me .I'm sure it could be improved in time, but it's a winner and it works just the way it is. I dont use Vermiculite and I dont use wood chips.Just wood pellets,Gypsum,and Rice Bran or Wheat Bran
This will make 13 lbs. of substrate which will provide enough sub for 2 - 5 lb. blocks and 1- 3 lb. block (with a little left to toss to the mushroom gods ) that will all fit in my 23 qt pressure cooker nicely.
So...enough with the bullshit,lets get started ;)
In a 5 gallon pail, add-
10 ozs.- Garden Gypsum (fill qt.jar to just above 8 oz. line)
3- Topped off quart jars of Premium Hardwood Fuel Pellets.(60 ozs. total net wt.)
Mix these together by hand a little bit and then add-
1 gallon - Distilled Water ( less 6 ozs) because moisture content is critical here. I'll explain in a bit.
Now get the ol ladys' big long fuggin spoon and mix that shit up some just to get it all nice and wet.It's all gonna break up real fast.BOOM...instant sawdust. Throw a top on it or a couple towels to prevent any evaporation and let it sit for 12 hours or so.I like to give it a stir every few hours just because of water settling a little....But puddling water is fine ,our bran will absorb it .PERFECTLY
After your 12 hour soak,give it one more good stir cuz its time to add the nutes.I like Rice Bran but Wheat Bran will work also.You can get this at any health food store.
Fill a qt. jar up to the bottom of the threads (14 ozs.) with Rice Bran and sprinkle it on top of your sawdust to cover it and smush it into the mix.Turn it a bit and keep doing that till its gone. I tip my bucket at an angle to be sure to stir it up good and evenly. It's gonna take some arm work.(Remember way back when, when you smushed your brf into your moistened verm for those PF cakes?)
Same thing here .
Now we start filling bags.I use 8" gusseted autoclavable ( 5 micron filter patch) grow bags that I get from a non-sponsor.Fill your bags with sub and dry fit them in your pc to be sure they'll fit.I stand mine up on end..Dont jam pack your pc you can always split your bags up and run a 2nd campaign tomorrow with the rest of your substrate .
When youre happy with your bag level ,fold it over itself and seal it up good with Scotch Brand Heavy Duty Shipping Packing Tape.Its great shit and will hold up to the heat .Careful how you tape it up because you have to cut it away in order to add your spawn and you dont want to butcher up your bag SO BE CAREFUL AND PAY ATTENTION TO DETAIL
Toss a few jar rings in the bottom of your pc and put your rack in.I like the rings in there because I put someextra water in it ........for a 2 hour sterilization.
So......get your Pressure Cooker started up and when your rocker starts to roll , turn your heat down to where you want it ,set your timer for 2 hours.When your time is up,shut the heat off and leave it alone.I dont ever open my PC for at least 12 hours and sometimes as long as 2 days.
Spawning to Substrate
So at this point,you've got your sterilized substrate and hopefully some colonized spawn to dump into it.I take a Xacto knife and carefully cut the tape (all this is done under sterile conditions in a sterile as possible environment naturally) across the bag ,without damaging it .If you happen to damage the bag,this tape works well to patch it up. Once ive got my bag tape cut away ,I fold the top 1 " over a couple times and clamp it with 2 or 3 clothespins.NOW, you start to fluff up your sub.Squeeze it and flluff it all up nice nice.When its all broken up your ready to spawn.
Now,how much spawn you add to your bags is up to you.You probably dont NEED this much but I add about a jar of colonized spawn to each 4-5 lb bag ( jars are 2/3 full ) .Works for me and colonizes nice and quick.
Having just broken up your spawn ,open your bag and quickly dump your jar in, clothespin it shut again and mix it all together nice and evenly.
Now throw that shit in your IC at 70-80F.I hold steady at 77F.Hericium Erinaceous (Lions Mane ) should colonize completely in about 5-6 weeks.Lentinula Edodes ( Shiitake ) takes longer for me,6-8 weeks or so.
Both of these strains fruit best at 60-70F.I had a fuck of a time struggling to reach these temperatures in the middle of August
Edited by Phish, 08 December 2019 - 08:43 PM.