The Sira-Cook™ Supreme™ bag can be used in a conventional oven or on a griddle, hot-plate or barbecue. Sauces can be added either by the retailer or the user, making the bag a suitable over-the-counter option. It can be either heat-sealed or simply folded over. Whether it is meat, fish, poultry or vegetables, all can be placed in the bag. There is no need for customers to handle the food, and the pack comes with an easy-to-open top. The bag can simply be peeled off, leaving the food on the foil base. The food can then continue to cook this way, or it can be served immediately from the foil. The bags are available in four sizes and also a standard or non-stick option. The clear top panel means the food is visible.