Operate, maintain, and clean deep fryer, broiler, stove, steamer, food processor, mixer, slicer, oven, steam table, tilt kettle, waffle iron, flat top grill, and other equipment according to instructions. We and our third party service providers also use clear GIFs in HTML e-mails to our customers, to help us track e-mail response rates, identify when our e-mails are viewed, and track whether our e-mails are forwarded.