This follows on from my question Is it safe to make mylk/milk from rice? which I realise was trying to ask two questions (if not three...)

I notice that the rice mylk I buy has a wonderful sweet taste, without the aftertaste of cane or beet sugar.

I have tried making rice mylk myself by blending soaked rice, and it has no sweetness (and tastes chalky).

It seems that the manufacturers of rice milk are using a clever fermentation process to break the rice starch down to natural sugars, as the Japanese have traditionally done when making amazake.

Is there any way I can achieve this myself? I don't want to add any kind of sweetening ingredients.

1 Answer 1


Fermentation is not the process you are looking for. What you want is mashing, which is the process of converting starches to sugars via the use of alpha-amylase proteins (aka enzymes). You will get the most information on this from the home brewing community, since mashing is the first step of an all-grain brewing process. Rice contains no natural a-amylase protein, so you will have to add some of your own. You can do this either by including an enzyme grain like barley in the mash (which would create a rice-barley milk) or by adding the pure a-amylase enzymes directly to the grains before the mash. You will then need to hydrate the grains and maintain them at the proper temperature for a period of time appropriate to the amount of sugars you want to be converted. I don't know the details on the process to make this work, but some research on all-grain brewing and a few trips to your local homebrew store should get you sorted.

  • Afaik homebrewing isn't really a thing in my country (and I don't drink at all) so I might need to be creative, but thanks so much for putting me on track! I'll be back when I've done more research and had a go
    – Zanna
    Aug 24, 2018 at 4:41

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