Most frozen fruit and vegetables come in flexible bags now as they are strong and can tolerate the low temperatures in a freezer environment for very long periods, without any loss of barrier performance or flexibility. Their printability also allows the products to be clearly identified and branded. Proteins such as fresh meat are also commonly vacuum wrapped using a flexible material. These offer long term protection, are relatively easy to open when only part of the product (for example chops or steaks) is required and will maintain the remaining product in a safe environment. The consumer can also see the condition of the meat (for example a frozen turkey) and can be confident there is no damage to the skin or freezer burn.