Always follow these exact instructions while heating.Fold into a square shaped bundle and place on a clean, dry microwave safe plate. Never place your Weighted Wrap directly inside your microwave as contact with residual dirt or oils can result in the fabric burning.Heat for 30 seconds. Remove from microwave and carefully test temperature on both the inside and outside of Weighted Wrap bundle. If desired temperature has not been reached then flip the wrap and heat for a further 30 seconds. This ensures even heating. Repeat until desired heat is reached but never exceed the maximum heat time in total. Do not overheat.- Never heat for more than 30 seconds per cycle.- Never exceed the maximum total heat time of 3 minutes (700-1000W) 4 minutes (0-700W).Monitor constantly while heating.Take care when removing from the microwave or oven and check it is at a comfortable temperature before use.Reheat only from room temperature.Do not allow children to heat the Weighted Wrap.