> research I've seen seems to indicate that unless it's a food container it's pretty minimal

I use glass jars for storing food. One of the reasons is stuff like BPA leaching from the plastic to the food. Another is that it's much easier to have hundreds of identical jars to have a pretty and consistently filled kitchen cabinets. A third is that transparent plastic becomes less transparent after multiple washes with a sponge.

But what I hit "reply" for was to say that heating plays a role. So putting hot food inside a container is likely worse than putting something at room temperature in a container and then putting it in the fridge.

> 1.1 ng total for an average adult

Wow, that's so little. I wonder if malicious BPA poisoning cases have been reported. It's probably undetectable unless you search for it specifically.

> The other problem is what do they replace BPA with?

I remember reading that BPA could be replaced with BPB. Obviously it may be OK, but to a layman it's like saying "we no longer add rat shit to our food, now it's bat shit".

1.1ng is a very small amount, but the effect is really not that well understood. It’s definitely something we should minimise.

However it’s not a dangerous dose, it’s just the dose that produces detectable changes and we can detect really really small changes. The toxic dose is around 4g/kg body weight. So an average adult would need to consume over 300 grams of pure BPA to be poisoned by it.

Of course the answer is to use non-plastic containers, though the most common plastic used for food (PET - milk bottles, most soft drinks etc) don’t contain any BPA. It’s the reusable ones that do.

I have glass containers for food, though I do still use plastic ones for short term storage for things I won’t heat. Honestly this seems like the best answer, metal, wood and glass if you can.