Milk is sold in bags in Ontario, Quebec, and the Maritimes, but it could be approaching its expiry date. Part of the reason is changing consumer habits.
"Consumption of milk per capita has gone down every year over the last 30 years," says Sylvain Charlebois, director of the Agri-Food Analytics Lab at Dalhousie University. "Actually, it's gone down by more than 20 per cent since 2015."
While bagged milk is often cited as a unique Canadianism, it's actually not sold west of Ontario. Those who prefer it, however, say it's more cost efficient and some even believe it tastes better.
Cheese producer buys milk from farm X to make cheese. Grocery store also buys bagged milk from farm X. Cheese producer makes low quality cheese. How will that lead to people buying less bagged milk?
I said this in another branch of this thread, but I'll repeat it here. You can make the argument that low quality milk from farm X leads to people buying less milk, but I don't see how low quality cheese can cause people to buy less milk.