Basically, sealed tin cans of food currently do not seem to operate as if they are sealed. I can’t put one in my backpack without spilling the contents, and can only world them to move them around. Obviously this is a substantial inconvenience for a clear mistake.
And while we’re at it, a warning when I’m about to drop liquids out of my inventory into the bottom of my fridge would be very helpful. The fact that the foods and liquids appear above the containers for them leads to frequent mistakes.