I'm doing my first BIAB, and I just did a test run on the stovetop without any grain. With the lid off, it's only bringing the 25L of water to 95C before it won't get any hotter.
I see my options as:
1. Put the lid on during the boil, hope and pray (but what about the boilover?)
2. Buy an outdoor gas cooker (I live in an apartment without a proper balcony)
3. Insulate the pot somehow (it's definitely losing heat to the world around it)
4. Is 95C enough to get the acids out anyway? I only want a mild-medium bitterness