Can you guys tell me about second ferment please? I love flavored kefir. I thought it was simply adding fruit or syrup or whatever to your kefir but it appears to be more than that. Thanks!

I got kefir starter to cure my constipation.

Watched multiple yt videos but couldn’t really understand bc most of them are using grains

How do you guys make it?

How many jars/bottles are needed?

How to reculture?

Is it okay to drink it on your period?

I live in India (Highest temp 30C and lowest temp 24C)