This is nonsense. I looked up coconut milk, almond milk, and soy milk in Google's Ngram Viewer. Coconut milk has been steadily rising in usage since around 1920 and soy milk has been steadily increasing since around 1960. What surprised me though was that almond milk has been in steady usage since around 1800. More than that, in a compilation of writings of Francis Bacon, who died in 1626, he suggests adding pistachios to almond milk.
"Pistachoes, so they be good, and not musty, joined with almonds in almond milk; or made into a milk themselves, like unto almond milk, but more green, are an excellent nourisher: but you shall do well, to add a little ginger, scraped, because they are not without some subtile windiness."
It's pretty clear that using the work "milk" to describe a liquid that derives from a plant is a pretty old custom in English.
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This is nonsense. I looked up coconut milk, almond milk, and soy milk in Google's Ngram Viewer. Coconut milk has been steadily rising in usage since around 1920 and soy milk has been steadily increasing since around 1960. What surprised me though was that almond milk has been in steady usage since around 1800. More than that, in a compilation of writings of Francis Bacon, who died in 1626, he suggests adding pistachios to almond milk.
"Pistachoes, so they be good, and not musty, joined with almonds in almond milk; or made into a milk themselves, like unto almond milk, but more green, are an excellent nourisher: but you shall do well, to add a little ginger, scraped, because they are not without some subtile windiness."
It's pretty clear that using the work "milk" to describe a liquid that derives from a plant is a pretty old custom in English.