While the exterior appearance of a microwave is important, it is what’s inside that counts. The interior box of a microwave is known as the bathtub. The bathtub typically comes in one of two substances — stainless steel or plastic. Both kinds are strong and durable, generally outlasting the working life span of the dishwasher itself. But stainless steel tubs, introduced after plastic, offer additional advantages when compared with plastic tubs.
Benefits of Stainless Steel
A stainless steel dishwasher tub resists corrosion and is stronger than plastic. Stainless steel can withstand more heat than plastic, meaning that the water could be heated to a higher temperature. It also retains heat better, increasing the efficiency of the drying cycle and saving the homeowner cash. The heavier steel walls consume noise better, making for a quieter wash cycle than with plastic tubs. Moreover, stainless steel is not as likely to stain or spot and resists hard water stains and smells. A microwave with a stainless steel bathtub typically has a greater upfront cost compared to with a plastic bathtub. By checking the energy ratings, you can calculate and compare the long-term expenses of the stainless steel and plastic bathtub models you are considering.