ok so if someone were to soak their mush in alcohol and and then put the resulting liquid in the fridge how long would the effectiveness keep?
um, I've never heard about soaking shrooms in alcohol :/ I just leave mine in a air tight bag and they will usually be good for a long time. I think perserving mushrooms allows more of the Psilocin to come out making them better mushrooms. I dunno though, I do know that if you keep them away from air, heat, and moisture your mushrooms will always be good to go.
The best thing to do it to dry them throughly and pack them tightly into a air tight glass jar with a small bag of dessicant..... then place in the dark.