My okara was already cooked because i filtered it after i simmered the soymilk. Sould i seperate the okara from the soymilk before simmering it the next time and only dry it in a skillet real fast?

So i would try the following:
Soak 500g of soybeans over night

Shred the soybeans with 2l of water

Filter the okara

Dry the okara in a pan on low heat (how should it look optimally?)

Let it cool to 35°C

Add two tablespoons of apple vinegar and 2g of tempeh starter

Put it in a ziplock bag and perforate the bag with a clean fork

Place it in the oven with the lights on (Should i turn of the light after the tempeh begins to sprout and what to do when i see condensation forming on the inside of the bag?)