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Milk bag
Milk bags are plastic bags that carry milk. They are usually stored in a pitcher or jug with one of the corners cut off to allow for pouring. A typical milk bag contains approximately of milk in North America and of milk in Eastern Europe and the Baltics.
== Milk bags in Canada ==
Bagged milk is common in many parts of Canada. The innovation was introduced in 1967 by DuPont using European equipment. The new packaging quickly found favour with the indigenous dairy industry since it allowed them to supplant glass bottles which were heavier and more prone to breakage. However, the consumer public preferred plastic jugs for years, but largely accepted the new containers in certain regions in the 1970s. A major reason for that shift was with the national conversion to the metric system, which was easier to adjust to on production with bags while doing the same for jugs required entire systems to be wholly redesigned.
They are sold in eastern Canada, but not widely in western Canada (Manitoba, Saskatchewan, Alberta and British Columbia).〔 Three bags are sold together in a larger bag containing a total of of milk. The bags are not sold individually, and are either not labeled at all or labeled with only the expiry date, the lot number and sometimes the type of milk contained in the bag. The three-bag package is the largest normally sold at retail, with the lowest unit price. Some convenience store chains offer plastic jugs instead of milk bags, even in eastern Canada.
Two accessories are commonly associated with Canadian milk bags: pitchers and bag openers. The key-shaped bag opener with a clip and a magnet was invented in Toronto in 1979. These bag openers are a common type of refrigerator magnet, although the bags can be opened with scissors or knives.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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