Someone at my house put a nice-looking but inexpensive (Walmart) bamboo
cutting board in the dishwasher -- on the "potscrubber" cycle with the
sanitizer water heater selected, and also heat-dry. As you can imagine,
it warped badly and is almost unusable. I'm trying to straighten it out.

I've wet it on both sides and put it on the countertop with about 60
pounds of dumbbells on top. That almost takes the warp out, and I'm
hoping it will sag overnight and flatten completely. No idea how much
it will spring back when I take the weight off. I took the weights off
after about an hour to see if it was doing anything and it was
definitely straighter -- but not anywhere near enough.

Anybody have a better idea? I think I'm on the right track but might
need to run it thru the dishwasher again and weigh it down while it's
still hot. Sort of like steaming it.

Bob