sunnychooks
Deeply Rooted
I bought an electric seed mat and cannot find a seed tray without cells (I'd like a flat surface). Would a disposable aluminum baking tray like the ones you buy in the supermarkets be okay to place on top of the mat? The warnings on the mat say not to put anything that does not conduct heat on top of the mat or it may short out. As far as I know, aluminum is a good heat conductor. Would there be any danger in using a metal tray? Thanks!