You wash rice mainly to remove extra surface starch, which helps the grains cook up less sticky and more separate. It can also rinse away dust, tiny debris, and some contaminants, though the exact benefit depends on the rice type and how it was processed.

Why people do it

  • Texture: Rinsing reduces the starch on the outside of the grain, so the rice is fluffier instead of gummy.
  • Cleanliness: It can wash off dust, bits of husk, and other small particles from storage or transport.
  • Potential contaminant reduction: Some sources note that rinsing and soaking may lower arsenic and other unwanted substances to some degree.
  • Recipe control: For dishes like fried rice or biryani, washed rice helps keep grains distinct.

When you might skip it

  • Risotto, rice pudding, paella: These dishes rely on starch for a creamy texture, so washing can work against the recipe.
  • Fortified or “no-rinse” rice: Some products can lose added nutrients if washed, so the label matters.

Simple rule

If you want fluffy, separate grains, wash the rice a few times until the water is less cloudy. If you want creamy or sticky rice, don’t wash it much, or at all.

TL;DR: Wash rice for cleaner, fluffier grains; skip or reduce washing when the recipe depends on starch.