Comment by roel_v

If I buy a lawn mower, I don't expect anyone to guarantee with absolute certainty that there will never be a person who thinks 'hey maybe I can just stick my hand in there to unclog it' and gets their fingers chopped off. Probably a wrong analogy but I can't even be bothered to think it through, of course fermenting food causes things to explode, how is that even remotely the fault of the manufacturer? I loathe the times we live in where everything needs to be padded and cushioned because heavens forbid we start expecting people to think for a second. I mean, the valve requires a crevice where all sorts of things can grow (I've seen them, I've cleaned these things after they were left in a school bag throughout two weeks of school holidays with food in them), I'm not going to complain that it would somehow be Thermos' fault if one of my kids got sick off something getting stuck in there. At some point, there is such a thing as 'personal responsibility'.