Rice, Water and Heat: A Ratio Field Guide

Start with the grain, not the cup

Long-grain jasmine and short-grain rice drink differently. The first wants a lighter hand so the grains stay separate; the second tolerates, and often needs, a little more water to turn plump and slightly sticky. A measuring cup is a volume, but rice is sold by weight, and a heaped cup can be twenty percent more rice than a levelled one. Weigh 150 g per person for a main meal and the ratio stops being a guessing game.

Rinsing is about surface starch, not cleanliness. Swirl the grains in cold water three or four times until the water runs from milky to almost clear, then drain well for a full minute. Wet grains left sitting in a sieve carry their own water into the pot, which is the usual reason a carefully measured batch turns soft.

• Jasmine or long-grain white rice: 1 part rice to 1.2 parts water by volume, or 150 g rice to 180 ml water.
• Short-grain white rice: 1 part rice to 1.3 parts water; soak 20 minutes first if you want a glossy finish.
• Brown rice: 1 part rice to 1.8 parts water and roughly double the cooking time.
• For congee, abandon ratios: start at 1 part rice to 8 parts water and cook down to the thickness you like.

What the lid is for

Bring the pot to a boil uncovered, stir once to release grains stuck to the base, then lid on and heat to the lowest setting. From that moment the water is being absorbed, not boiled away, and every peek costs steam. Twelve to fourteen minutes for white rice, then ten minutes off the heat with the lid still on. That rest is not optional: the moisture equalises from the wet bottom to the drier top.

A rice cooker automates exactly this sequence. Its real advantage is not a different recipe but a thermostat that knows when free water has gone and the temperature starts to climb. If you are cooking on a hob, the equivalent signal is a change in sound: the gentle bubbling drops away to a faint, dry tick.

Cold rice is a different ingredient

Chill cooked rice spread out on a tray, uncovered, for at least an hour. The surface dries and the starch firms up, which is why day-old rice fries into separate grains instead of a paste. Keep it no longer than a day in the fridge and reheat it thoroughly; cooked rice left at room temperature is a genuine food safety problem, not a texture preference.

Questions that come up