I’d write the company about any warranty, I have no idea. They are hard plastic with a red rubber ring. I think if I were worried about mice, I would put rings back on the jars after checking the seal once they cooled.
Do I ever hate mice. Just finished a huge ordeal with cleaning out my parent’s home in the U.P. and the mice made awful messes. Ruined things that my mother had saved for over 50 years.
Mice are little monsters.
We are new to the little farm..Putting everything in glass or in metal that looks like food.
Acquired a couple of attack kittens.
EPA isn’t helping matters, guess they are trying to bring plague back.. Banned warfarin rodenticides.