Soy Milk

Note Profile

Botanical

About

Soy milk is the strained water extract of soaked, ground soybeans. As a fragrance note it is a beverage reference, not a dairy one.

Scent Profile

Green leads, and it is the beany facet the food-science literature names: hexanal, hexanol and pentanol, the lipoxygenase oxidation products that make raw soy milk smell of broken bean rather than of dairy. Nutty is the other half, taken straight from Wikipedia's description of manufactured sweetened soy milk as 'oatmeal-like, nutty'. Lactonic is the milk half. It is here because Fragrantica describes the note in use as a savoury milky note, and it is held well below the published milk (0.82) and condensed-milk (0.92) because no source gives soy milk any lactone chemistry. Soy has no butyric or decalactone character to give, so the creaminess is texture rather than dairy. Tobacco_hay is the dry cereal register that 'oatmeal-like' implies, the same facet that carries published oat and oatmilk. Sweet_vanillic is the added sugar in the commercial drink, which is the version a perfume references. Below the line, earthy is the legume and bean-paste nuance shared with published soybean, aldehydic is hexanal read as a fatty aldehyde, and clean_musk, sour, sulphurous and creamy_woody are small.

ScentWheel

Breadthmedium

EnvelopeHeart · ~6h lasting

Family Green & Aromatic, Sweet & Gourmand

Read off the wheel, not a label applied to the note.

Origin

Soy milk is made by soaking soybeans, grinding them with water and straining out the solids. Its own smell comes from the bean, not from the process. When the raw bean is broken open in water, the enzyme lipoxygenase oxidises its polyunsaturated fat, and the unstable hydroperoxides that form break down into hexanal, hexanol and pentanol. Food scientists call the result 'beany' (Kim et al., PMC5216885). Commercial soy milk is made specifically to suppress this. Heating above 65C kills the lipoxygenase, or the maker uses a lipoxygenase-free cultivar. Wikipedia records that the Cornell work identifying the enzyme dates from 1966, and that manufactured sweetened soy milk instead reads as 'oatmeal-like, nutty'. No fragrance house sells a soy milk material. The perfumery note is an accord.

Usage in Perfumery

Soy milk appears in 4 Fragrantica perfumes and 1 Parfumo perfume, all as a beverage or gourmand accent. Fragrantica files it under Beverages and calls it a savoury milky note. Perfumers use it where a dairy note would be too rich or too sweet: it carries the milk idea with a cereal and legume edge instead of butter. It sits well with rice, oat, almond, matcha and vanilla, and gives a gourmand a pale, quiet body.