I like growing mushrooms as much as I like studying them These are Pleurotus ostreatus/ Blue Oyster. My lc/ Liquid culture is a corn water LC that I make from the leftover popcorn juice in the pressure cooker. As you can see the spawn I use for inoculation is popcorn. Fastest spawn medium I have ever used. My substrate is corn husk. Straw works great also. I just like using what I don't have to pay for. Fortunately for me,I live right smack in the middle of the country. Plenty of useful left overs to choose from. I will get into the details of How to do this Tek as I go.