How to Cook Perfect Rice Every Time: Ratios, Methods and Fixes

Rice is one of the most widely eaten staple foods in the world, yet it is also one of the easiest things to get wrong in a home kitchen. Gummy clumps, scorched bottoms and crunchy undercooked grains are usually not a sign of bad rice — they are a sign of the wrong liquid ratio, the wrong heat, or a lid lifted at the wrong moment, according to the U.S. rice industry's own cooking guidance and the food-science testing group America's Test Kitchen.

The basic ratios, by rice type

The USA Rice Federation, the trade group representing American rice producers, publishes a rice cooking chart with recommended liquid-to-rice ratios by volume. For stovetop cooking, it lists 2 parts liquid to 1 part rice for white long-grain rice, 1.5:1 for white medium-grain, 1.25:1 for white short-grain, and 2.25:1 for both brown rice and parboiled rice.

Other tested sources land on slightly different numbers for long-grain white rice specifically. The food blog RecipeTin Eats, after repeated testing, recommends 1.5 cups of water per cup of rice on the stovetop — less than the USA Rice figure — and uses the same 1.5-cups-per-cup ratio for its oven method (using boiling water). Only its microwave method needs more liquid, about 2 cups of water per cup of rice, because more liquid evaporates with that technique. The gap between sources shows that ratios are a starting point, not a fixed law: pot shape, stove heat and even altitude change how much water evaporates during cooking.

Step-by-step: the stovetop absorption method

1. Measure the rice and liquid using the ratio for your rice type, and combine them in a 2- to 3-quart saucepan along with a pinch of salt and, optionally, a small amount of butter or oil, as described in USA Rice's cooking instructions.
2. Bring the pot to a boil over high heat, stirring once or twice at this stage only.
3. Reduce the heat to low, cover the pot tightly, and simmer without lifting the lid — USA Rice's chart lists about 15–18 minutes for white rice, 40–45 minutes for brown rice, and 20 minutes for parboiled rice.
4. Once the time is up, remove the pot from the heat and let it stand, still covered, for about 10 minutes; RecipeTin Eats notes this rest allows any remaining surface water to be absorbed into the grains.
5. Fluff the rice gently with a fork to separate the grains before serving.

Why rice turns out gummy or mushy

America's Test Kitchen traced a common failure — rice turning mushy when a recipe is doubled — to a mismatch between absorption and evaporation. Rice absorbs water in a fixed 1:1 ratio by volume regardless of batch size, but the amount of water lost to evaporation during cooking stays roughly constant rather than scaling up with the batch. In the outlet's own test, a single batch of 1.5 cups of rice used 2.25 cups of water, of which 1.5 cups were absorbed by the rice and 0.75 cup evaporated. Simply doubling every quantity to 3 cups of rice and 4.5 cups of water left the extra 0.75 cup of water with nowhere to go, producing soggy rice; the fix was to use 3 cups of rice with only 3.75 cups of water so the fixed evaporation amount was no longer doubled.

Both USA Rice and RecipeTin Eats add a second cause of gumminess that has nothing to do with water volume: stirring. USA Rice states plainly that "stirring releases the starch, resulting in rice that is sticky," so rice should be left undisturbed once it is covered and simmering.

Rinsing: does it matter?

Sources disagree on whether rinsing rice before cooking is necessary, and the disagreement appears to depend on where the rice is grown and how it was milled. USA Rice states that American-grown rice does not need to be washed or rinsed before or after cooking, adding that rinsing can wash away nutrients added during enrichment. RecipeTin Eats takes a similar position for its own ratio-and-method combination, arguing rinsing is unnecessary for fluffy results if the 1.5:1 ratio is used, but recommends rinsing when cleanliness is a concern or for flavoured dishes such as biryani that need the water content adjusted. The same source advises reducing the water by two tablespoons per cup of rice if the rice is rinsed, since rinsed grains carry some water with them into the pot.

Troubleshooting common problems

• Gummy or mushy rice: usually caused by too much water for the batch size, or by stirring during cooking; America's Test Kitchen's evaporation-versus-absorption math explains why simply scaling up a ratio for larger batches backfires.
• Undercooked or crunchy rice: RecipeTin Eats attributes this to insufficient cooking time or a skipped resting period; the suggested fix is adding about a quarter cup of water per cup of rice, cooking a further 5 minutes on low, then resting 10 minutes.
• Burnt or scorched base: linked to heat that is too high or a pot that is too large relative to the amount of rice, according to RecipeTin Eats, which recommends lowering the heat and matching pot size to quantity.

Choosing a cooking method

The ratio that works also depends on the appliance. Because a sealed pressure cooker loses very little water to evaporation, PressureCookRecipes.com's tested Instant Pot method uses a 1:1 ratio of cold water to white rice, cooked on high pressure for 3 minutes followed by a 10-minute natural pressure release — markedly less liquid and less active cooking time than the stovetop method requires.