Durable, pretty and oh so reminiscent of all those delicious, bursting with flavor sandwiches accompanied with a slather of mayo and a round of purple onion, a sprinkle of salt, and nothing else. Bridgewater melamine should be either washed by hand with a soft sponge or in the dishwasher on the upper shelf. Avoid scrubbing with a scouring pad, as it may wear patterns. Not for use in microwave.