Tools · Batch calculator
How much water, how many cubes.
Pick a method and how much rice you want to use. The numbers come from the ratios in our three recipes and nothing else.
The rules it uses
| Method | Rice | Water | Yield as written | From |
|---|---|---|---|---|
| Soaked | ½ cup | 2 cups | About 2 cups, about 16 cubes | Soaked recipe |
| Boiled | ½ cup | 2 to 3 cups | About 2 cups, about 16 cubes | Boiled recipe |
| Fermented | ½ cup | 2 cups | About 2 cups, about 16 cubes | Fermented recipe |
- Water is four times the rice by volume. For the boiled method the recipe allows up to six times, because a pot at a simmer loses water; the calculator shows that range.
- Yield is taken as four times the rice by volume, which is the figure our recipes give (½ cup of rice, about 2 cups). It is the recipes' own estimate, not a measurement, and the real amount will be somewhat less.
- Cubes are the yield divided by your cube size. Our recipes assume 2 tablespoons a cube, which is how 2 cups comes to about 16 cubes. Trays vary, so pick the size closest to yours, or measure one compartment with a tablespoon of water.
- Conversions: 1 US cup is 16 tablespoons, or about 237 ml.
What it can't tell you
- It works in cups because the recipes do. We haven't published gram weights and won't guess them.
- These are our recipes' ratios, not tested optimums. No study has compared rice-to-water ratios for skin; see the gaps in the evidence register.
- It doesn't know how long your batch keeps. For that, use the use-by helper, and make the smallest batch that suits you: a refrigerated jar gets 48 hours under the rule we borrow.
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