Our 100 cup coffee maker commercial is constructed with double-wall insulator with a 0.41mm thick 430 stainless steel outer layer and a 0.41mm thick 304 stainless steel inner layer that is both engineered in retaining the heat longer than single wall models. This large coffee maker 100 cup has cool to touch handles which makes our coffee urn 100 cup easy to carry and a simple twist-lock lid that helps lessen accidental spillage.