I posted this in a couple other threads where people were wondering about the possibility of BPA in their mash tuns. I'm re-posting it here for all to see. If others could add to this thread by noting other companies that make BPA-free coolers, that'd be great (I wouldn't be surprised if all companies have already done away with BPA, but it'd be good to know for sure). Anyway, here's the post:
I'm about to get into all-grain brewing. Because I'll be using a cooler as a mash tun, I wondered about whether the plastic used in such coolers was BPA free. From looking through threads here, I couldn't find any conclusive statements. So I tweeted at Igloo coolers and they responded that all Igloo products are BPA-free. In fact, they seem to be aware of homebrewers' use of their products, as this was their reply:
@IglooProducts: All of our products are BPA-free! Igloo Coolers are great for homebrewing.
So there ya go. If you're not sure if your cooler is BPA free, you could also check the recycling number. From some other research I did online, it looks like BPA is only found in Number 3 and Number 7 plastics (but don't quote me on that).
Hope this helps.