Care & Use: Dishwasher Safe: Place lid in top rack & vessel in bottom rack. Before first use, remove gasket from lid; wash & dry lid, vessel & gasket thoroughly. After washing, reassemble by pressing gasket firmly into lid. Leakproof: Not intended to be used upside down or to be submerged under water. For safety, remove lid before microwaving; cover with paper towel to prevent splatters. Do not use in ovens, under browning elements or on stovetop. Avoid sharp utensils - do not cut food in containers; avoid abrasive cleaners & scrub pads. To prevent staining & blistering, avoid overheating of high-fat foods, sugars, oils & tomato sauces.