It says on the FAQ that a prepared Jake must be kept in a refrigerator and eaten within 24 hours. But this seems to me like a "better to be safe than sorry"-rule, and I suspect that most of the time, it can be eaten even after 24 hours.
I'm not always able to finish my entire Jake. So I set it in the fridge. The next day it has separated, and there's a thin dark brown layer at the top. When I shake it up again, it's seemingly back to normal. I drink it and it tastes normal to.
My two questions:
1: How can I tell when an already prepared Jake actually has gone bad?
2: Is it completely normal that Jake separates, and is it perfectly safe to eat anyway?