That spawn looks perfect, do you trust this person? Is he well known for agar use are you able to verify without doubt that this is cubensis? Then the simplest thing to do is, Break up the jar, spread it out dry the entire thing grind it to a powder and consume it or put it in capsules. Highest...
I suggest if you can, capture some inner cake tissue and take it to agar. Inside some makeshift SAB (Still air box) Lookup "home mycology" on the tubes of you. He is a SAB guru. Then do pf tek (a gentlemans tek that will shit out more more mushrooms you cant even flush in 2 loo flushes when you...