Because it can warp the pan.
Ever have a pan that one side seems to brown a lot fast than the other or maybe when it sits on the stove it seems to not lay flat??
Well now you know why.
If you already have pans like this heat them up and flip them upside down than add water to the back. Than flip back over lay flat in the counter and add a plank of wood on top of it and something really heavy. The heavier the better.
It should after it cools be flat again. If it isn’t fully repeat the process.
Trust me it does work.
Ever have a pan that one side seems to brown a lot fast than the other or maybe when it sits on the stove it seems to not lay flat??
Well now you know why.
If you already have pans like this heat them up and flip them upside down than add water to the back. Than flip back over lay flat in the counter and add a plank of wood on top of it and something really heavy. The heavier the better.
It should after it cools be flat again. If it isn’t fully repeat the process.
Trust me it does work.