On a daily basis, just give the inside a wipe down as if it were a plate and reuse again and again. If the outside gets grubby or you get a spill you can either give it a hand wash in the sink before you do the washing up, or it can be washed in the machine at 30 degrees. If machine washing – put the velcro over onto itself or put in a laundry bag so that it doesn’t catch socks! Word of warning….don;t use a heavily scented fabric conditioner….one lady commented that her tuna sandwiches tasted of lavender ….a bit too Heston Blumenthal for her liking! I recommend that for dark colours you do the first wash in the sink in case there are any residual dye on the fabric.