Yes, these cloths can be washed in either cold or warm water in a separate load. They can be washed and reused countless times. For extra care, use a gentle detergent free of bleach, dyes and fragarances. Do NOT use bleach or fabric softener as this will loosen the fibers. Air dry is preferred, or you can use no heat or low heat on your dryer setting. Do NOT use fabric dryer sheets if using a dryer.