On Monday, 1 June 2020 15:09:37 UTC+1, wrote:
It happens that Scott formulated :
In the old days we used to keep opened tins in the fridge. I think
you could even buy a plastic lid to fit on the tin. Now we are told
to transfer the contents to another container.

I/we don't bother, we put the opened tin in the fridge, but covered
with one of those plastic tops that comes from those crisps in a tube
(name?).

Pringles.