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Boil-in-Bags are a form of packaging food products such that the bagged food is heated/cooked in boiling water. Plastic bags can be solid and impermeable for holding frozen foods; alternatively, bags can be porous or perforated to allow boiling water into the bag.
Contents
Solid bags
Prepared foods can be securely packed into plastic bags, frozen, and often packed into paperboard folding cartons. A consumer takes the pouch and places it into boiling water for a specified period. The bag is either cut open or can have an easy-opening feature.
Bags are usually not suited for microwave heating unless they are punctured to release pressure. Some have self-venting features.
Porous bags
Some dry products, typically grains, are sold in perforated plastic bags and designed for convenient cooking directly in the enclosure. Upon cooking food can be drained easily by removal of bag from water, without use of additional kitchen utensils.
The most popular product sold as Boil-in-Bag is rice, but other cereals like pearl barley or pseudocereals like buckwheat are also available.
Typically, temperature resistant, perforated polypropylene bags are used as food enclosure.