🚚 Delivery

Milk delivery is the last link of the chain, when the product goes from a store, farm or service to the customer. For chilled milk this is a vulnerable stretch. Delivery used to be the main way: in the US, 54% of fluid milk went straight to consumers in 1954, but only 19% in 1971.

Chilled milk travels in a temperature-controlled compartment and goes into the fridge right away. The rules are the same as for the whole chain. EU Regulation 852/2004 requires vehicles and containers to hold a suitable temperature and allow it to be monitored. The Codex Alimentarius adds that a chilled compartment is cooled before loading and kept cold even during unloading. This applies both to home delivery and to transport to the store.

According to the US Department of Agriculture, in the 1930s about three quarters of fluid milk was delivered straight to the consumer. In Britain, milkmen appeared from about the 1860s, when the railway brought fresh milk to the cities. Glass bottles appeared from the 1880s but only became widespread in the 1920–30s; before that, milk was ladled from churns into customers' jugs. In the US, the share of direct delivery fell almost threefold in seventeen years.

Home delivery or shop delivery? The cold chain rules are the same for both: a vehicle or container must hold a suitable temperature, and this applies to a milkman's round as much as to transport to the store. What differs is who takes the milk into the fridge. At a shop it is the customer who carries it home from the chilled cabinet, while with doorstep delivery the milk may stand outside until someone brings it in. In the US direct delivery fell from 54% of fluid milk in 1954 to 19% in 1971.

Delivered or shop-bought, check the pack for the storage instruction such as “keep refrigerated” and for the use-by date, since these decide how long the milk really lasts. In a shop, chilled milk stands in the dairy cabinet of a supermarket or a dairy shop, never at room temperature. A doorstep delivery from a dairy or farm service comes to you chilled, so put it in the fridge the moment it arrives.

Why it matters to you. Delivered chilled milk should not be left outside the door for long: the longer it sits in the warmth, the shorter its real shelf life. Bring it in right away, keep it in the fridge, and check the storage conditions on the label.