The Mia dispenser features a container in borosilicate glass, a lid made using at least 90% recycled stainless steel, and a silicone handle. Slight variations in the glass may occur. Before first use, clean with mild detergent and rinse thoroughly with warm water. Do not use abrasive materials. Only the glass container is dishwasher safe. Do not fill the glass container beyond the rim. This is a fragile product. Please handle it with care and place the stainless steel lid on the glass container gently. Do not use if glass is chipped or broken. Do not place in the microwave, on a stove, or on any direct heat source.