The Canadians have peculiar tastes and a strong liking for ketchup chips, butter tarts, and poutine. But did you know that it
The Canadians have peculiar tastes and a strong liking for ketchup chips, butter tarts, and poutine. But did you know that it’s the Canadians who invented the bagged milk back in 1967? They (especially the ones in East) have been using the 4L packs of this milk since the 1970s.
So let’s know here what is bagged milk, a quick history on it, which countries drink it, and what are its benefits and drawbacks.
Bagged milk or milk bag is nothing but transparent plastic bags containing milk. It is mostly stored in a pitcher or jug having one corner allowed to be nicked off at the time of pouring.
Pitchers and bag openers are the two common accessories related to Canadian milk bags. The key shaped bag openers are a type of commonly used refrigerator magnet.
Until the late 1960s, the milk was being sold in the glass bottles. The manufacturers were well aware of the amount of waste and expense involved. The heavy bottles were difficult to transport and were fragile in nature.
Some years later, Canada planned to change the metric system of selling liquids and demanded them to be sold in liters. The manufacturing plants that produced plastic jugs or cartons discovered that their containers had to be revamped in order to cater to the new requirements.
However, the process for adding milk into plastic bags needed very small changes. In 1967, Du Pont introduced this innovation by using a European equipment. The domestic dairy industry received it with open arms due to its low fragility and light-weight packaging. This also resulted in reduced packaging waste as they need less amount of plastic to hold the same amount of milk.
Although, the consumers favored the use of plastic jugs for many years, but accepted the new containers in certain regions in the 1970s. A big reason behind such shift was the national conversion of the metric system. It was easy to adjust the production of milk bags but the production of jugs required the whole system to be redesigned.
In 1978, the 4L milk bags became a standard in Ontario and until the early 1980s, Canada fully adopted the metric system. The consumers began understanding the benefits of bagged milk. Even though the milk loses its freshness once it is opened, the other two new packs could be opened as it comes with 3 packs in a large sack.
In 2010, a UK-based supermarket chain Sainsbury’s launched 2-pint bags offering a free pitcher as an incentive to people to opt this and reduce waste.
In 1979, a common accessory associated with Canadian bagged milk ‘key-shaped bag opener’ was invented in Toronto. It came with a clip and a magnet.
You may have read or heard that Canadians widely use bagged milk. Well, that’s true but partially. It’s the eastern Canada (especially Ontario and Quebec) where people drink from milk bags and its use is not so popular in Western Canada. In Western Canada, one can find them in the grocery stores of regions Manitoba, Saskatchewan, Alberta and British Columbia.
In the UK, the milk bags are mostly used along with a specialized plastic jug. The bag easily fits in the jug and its one corner is secured under a bar in the front of the jug. The doorstep deliveries are mostly common for traditional glass milk bottles in the UK but Dairy Crest company deliver milk bags at the doorstep. They sell Jug-It brand plastic jugs that are specially designed to carry milk bags.
In Mexico, the government social programs and assistance programs dispense milk in bags (1L or 1.8 imp pt per bag) at really low prices.
Bagged milk is also available in other countries like Russia, United States (in Iowa, Minnesota, and Wisconsin), Colombia, Brazil, Argentina, Israel, India, South Africa and Uruguay also use bagged milk.
The countries of Eastern bloc such as Hungary, Romania, Poland and others also used milk bags. In the late 1990s, Shepparton-based dairy company Ducats distributed milk bags in Australia (Greater Shepparton, Victoria). In the 1970s and early 1980s, milk bags of 1-pint size were used in Caboolture and Gympie in Queensland.
In 2008 in the United Kingdom, Sainsbury’s supermarket began a pilot experiment of distribution of milk bags with Dairy Crest. Initially, milk bags were targeted for 35 stores at the price same as that of a regular plastic bottle of milk of 2-imp-pint (or 1.1 L) size. Later in 2010, it was expanded throughout the nation.
In Canada, bagged milk comes in a bag containing nearly 11⁄3 liters (2.3 imp pt) of milk. In Eastern Europe, South America and the Baltics, a packet comprises of 1 L (1.8 imp pt) of milk.
In Canada, 3 bags of 11⁄3 liters are packed together into one large sack and sold in the market. The total size of milk in the large sack is 4 L (7 imp pt). Around 75% of all the milk sold in Ontario, Quebec, and Maritimes is delivered in this manner.
The bags can be with or without labeling. The labeling would include an expiry date, lot number and type of milk (not always). The 3-bag 4L pack is the largest size sold at the least unit price in retail store. Some of the convenience stores also offer 4L plastic jugs instead of milk bags.
For more than 30 years now, Kwik Trip/Kwik Star convenience stores in the US have their own in-house dairies and have been selling individual bagged milk along with the pitcher.
The benefit of bagged milk for consumers is that it is cost-effective. Also, it lowers the risk of spoilage since it comes in small portion sizes.
And for manufacturers, a major benefit is that the portion size can be easily varied in the case of milk bags but that’s not the case with cartons. Moreover, the overall packaging cost gets reduced.
When milk is being poured, the bag’s top may turn over resulting in spilling of milk. This can be prevented by cutting off the second hole on the other side of bag for air intake, or by holding the bag’s top while pouring, or a pitcher can be used with a lid to keep the milk bag in place.
The milk bags can’t be sealed easily once they are opened. However, some of the consumers fold the opened portion and clip it to retain the freshness. Moreover, a single-ply LDPE bag can be easily pierced and opened and requires careful handling and transportation in order to prevent any product loss or spill.
Even though milk bags use less plastic as compared to a usual jug, the consumers do not get any incentives (like refunds) for getting the bags recycled. In Canada, the recycling services are managed by the municipality or that region and are also not capable of being recycled. In certain municipalities, milk bags have to be thrown off and in other, they can be recycled.
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