Cabinet maintains 0°F and below so products can be loaded dry for faster frosting. Guided air circulation chills top row first, then circulates through cabinet for consistently cold temperatures. Automatic defrost. Stainless countertop and easy-glide lids. Aluminum glass rail for added storage. Exterior: Stainless Steel. Interior: Rust-resistant galvanized steel. FYI: 50" Units hold 250 mugs or 240 steins. 115V. 7' cord. UL, NSF, CSA. Warranty: 3 Year Parts & Labor, 5 Year Compressor.