Why plant milk should go by another name

12th Oct, 2019
Why plant milk should go by another name
Milk in various dishes. Calling plant-derived liquids “milk” goes back at least a thousand years.

Soy milk. Almond milk. Rice milk. To some dairy farmers, these products are like a red rag to a bull.

They want governments to decree the word “milk” should be reserved for milk from mammals. They argue letting plant-based products be called milk is potentially misleading consumers.

Australia’s National Party has joined the call, passing a motion urging the federal government to ban plant-based and other alternative products calling themselves milk.

If this were a matter of strict biological definition, they might have a good point, but both science and history are against them.

Scientific definitions

Biology defines milk as the white fluid from the mammary glands of female mammals used to nourish their young. It’s this ability (lactation) that in fact defines and distinguishes mammals from other animals. Given our own status as mammals, it’s not surprising that milk also carries significant cultural meaning.

But biology isn’t the last scientific word. Botany defines milk as a kind of juice or sap, usually white in colour, found in certain plants.

Calling plant-derived liquids “milk” goes back at least a thousand years.

Almond milk, for example, was introduced into Europe by the Moors in about the 8th century, and was popular across both the Christian and Islamic world as an alternative when religious discipline required abstaining from animal products. An early form of soy milk became popular in China in about the 14th century. Throughout Asia and other areas of the world where humans had higher rates of lactose intolerance, plant-based milks were the rule rather than the exception. It’s impossible to think of Thai food and many other regional cuisines without the essential component of coconut milk.

The international food standards body, the Codex Alimentarius Commission, defines milk as “the normal mammary secretion of milking animals obtained from one or more milkings without either addition to it or extraction from it, intended for consumption as liquid milk or for further processing”.

The Codex is a voluntary reference standard and there is no obligation to adopt its guidelines, though milk labelling regulations in Australia adhere closely to it. The Food Standards Code for Australia and New Zealand assumes “milk” refers to cow’s milk. Anything else must be specifically described in terms of its source – for example, sheep’s milk, goat’s milk or almond milk.

One of the arguments of those wanting even greater strictures is that customers might be misled into thinking alternatives have the same protein content as cow’s milk. (The Code says regular milk must contain at least 3.0 per cent protein and 3.2 per cent fat. Skim milk must contain at least 3.0 per cent protein and no more than 0.15per cent of fat.) Some plant-based beverages do contain less protein than dairy milk but are required to indicate on their labels that the product is not suitable as a complete milk replacement for children under 5 years old. However, the Australia Competition and Consumer Commission, which scrutinises all food products for potentially false, deceptive or misleading claims, has never identified this as an issue of concern.

Another argument is that use of the word milk and other dairy-related terms should be restricted in a similar vein to the prohibitions placed on food producers using terms considered geographical indicators. Probably the best-known “GI” is champagne, which was once used by makers of sparkling wine around the world but which the European Union (through trade deals) has successfully quarantined to local wine makers in the Champagne region of France.

The European Union has been lobbying the Australian government to enforce GIs for large number of dairy products, banning Australian producers using more than 50 cheese names including feta and gruyere. Yet some dairy farmer organisations pushing to “reclaim” the milk label as their sole preserve are also deeply opposed to losing the right to call their products by names claimed by European producers.

This is not the first time the dairy industry has sought to use regulation to prevent competition from plant-based products. In the first half of the 20th century, quotas were placed on margarine production in Australia to protect butter makers.

Margarine makers were also prevented from making margarine look like butter. In Australia, the dairy industry was protected not just by prohibitive duties on imported margarine but also the provision that margarine must be coloured pink.

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