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IN PROGRESS -  hyperlapse video vinegar test

anthocyanin, a powerful antioxidant, anti-inflammatory plant pigment that colors rice black-purple-reddish 

Just like it does with blueberries, sweet potato and red cabbage.

more about its health benefits

anthocyanin is stored in the bran, a layer on the outside of the grain

In nature pigment is always located on the outer layers. This is no different for a rice grain.

 

The core of the grain, the endosperm, contains the brown-whitish macro-nutrients (carbs, protein).

IN PROGRESS - illustration anatomy

anthocyanin is water-solvable

Anthocyanin dissolves in water and (alkaline) water will color black. Simple as that.

Soaking rice overnight results in up to 15-20% of loss. At home we don't soak our rice and many of our customers don't do either. The longer one soaks, the more whitish the grain becomes.

to verify authenticity, do the vinegar test

The vinegar test is the golden standard and anyone can do it.

The principle is this: anthocyanin acts as a pH indicator. Dissolve black rice in vinegar, an acid solvent and the solution colors deep red. That's what you want to see.

we are the only rice producer who measures anthocyanin and puts the actual value on the box