I've owned 3 plastic cutting boards since I've started cooking and each one has started warping in less than a year. I know putting them in the dishwasher can cause this, but all of mine started warping before I ran them through the dishwasher for the first time. Plus aren't plastic cutting boards supposed to have the advantage over wooden cutting boards of being dishwasher safe? If I can't even do that without warping the board, then to me that completely eliminates one of the advantages of plastic.
I keep my plastic cutting boards in place on my countertop with an Architec gripper mat, but when so little of the board makes contact with the mat due to the board's warping, the board still moves on the countertop when I'm trying to cut.
My current plastic cutting board and the one before it were both 0.25" thick. The one before that was even thinner. I've never even seen a plastic cutting board thicker than 0.25". Do they even exist?
At this point I'm thinking about just buying a Boos board (or maybe a boardsmith). Surely they would be much less likely to warp if properly cared for?