Screw that pf bullshit jar moron tek crapola. Utter waste of time. How much do you think a 1/2 pint jar is going to yeild that is 1/2 vermiculite? Decent dry weight yield is 10 percent of dry weight of the grain. Like building a car an atom at a time or doing 1/20th scale reactions. PF tek is great for selling PF syringes.
Myco bags, 22 quart pressure cooker, whole grain organic rye or brown rice, spray bottle, incubator made from a rubbermaid inside another matching rubbermaid with water and a fishtank heater at 83F, and spore syringes. Simmer the grain for 40 minutes. Rinse and drain after cooking. Close the bag tops with clothes pins. PC 5 bags at a time @ 15 psi for 90 minutes with a plate over them so they dont clog the pc vents. After they have cooled staple, tape or impulse seal the bags shut. Figure 6 to 8 cups of dry grain for 5 bags. Wait till they are room temperature. You can do 10 bags easily with 1 syringe. Inject towards a corner of the bag. Wear a dust mask and run a hepa filter before injecting bags. No hepa filter?, then build a glove box even if its just a clean trash can on its side with plastic over the front of it. Wipe insertion spot with alchohol, shake syringe, flame the needle tip till glowing red, let the needle cool a bit, inject 1 CC, tape bag injection hole shut, repeat until done. 2 Disposable lighters work to flame the needle, alternate lighters between bags so the lighter cools off. With bags you can thoroughly break up the grain once you see some growth so the whole bag colonizes quicker. When the bags are done incubating and you need to start harvesting slit them open at the top on the side the bag top folds down towards so they get a bit more air. Or with rye transfer to pausterized grain. Mist and harvest the bags thru the slit. Lose a bag toss the infection. 100+ bags from the right vendor are 30 cents each or less. This easier than pf tek for a newbie who is not a moron and a hell of alot more useful. You can grow them in the incubator, though they will need less heat after incubation, a light source, and air. Maximum 8 hours light, at least 16 hours of darkness.
If you get a 10 percent dry yield you could get up to 10 ounces with 10 bags assuming 6 pounds of dry grain total. Of course you will probably lose a bag or 2. Do the math and figure out how many PF jars you need for a potential 4 ounces. Even if you suck you will probably get atleast 4 ounces from 10 bags including lost bags.
F+ and Creeper may or may not be new strains. F+ is supposedly some new Florida strain though its authenticity is being debated.
No insult meant to PF, his technique does work for people. The yields blow huge goats from everything I have read about PF jars. Skip this crap. Probably need 100 jars to equal 10 bags. No nasty vermiculite either, no grinding rice, the bags are not heat traps like the jars.
Not a chemist I just follow directions on the box mix