The Claim

Cooking traditional rice with a 1:6 water-to-rice ratio after five washes reduces inorganic arsenic content by 20–39%, while rice cooker methods using a 1:2 water-to-rice ratio reduce inorganic arsenic by 1–17%, demonstrating that higher water volume and discarding cooking water are key factors in reducing inorganic arsenic in rice.

Source: Removal of Toxic and Essential Nutrient Elements from Commercial Rice Brands Using Different Washing and Cooking Practices: Human Health Risk Assessment

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
44score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Cause and effect
1 study reviewed
In plain English

Cooking rice with six times its volume in water and discarding the water after five washes removes 20–39% of inorganic arsenic, while using a rice cooker with twice its volume in water removes only 1–17%.

See the scientific wording

Traditional rice cooking with a 1:6 water-to-rice ratio after five washes reduces inorganic arsenic by 20–39% compared to 1–17% reduction with rice cooker methods using a 1:2 ratio, indicating that water volume and discarding cooking water are key factors in reducing the most toxic form of arsenic in rice.

Why this might work

When rice is washed multiple times and cooked in a large amount of water, the inorganic arsenic dissolved in the grain moves out into the water. When the water is poured out, the arsenic is removed from the rice entirely, leaving behind less of the toxic substance.

Verified mechanismbased on 1 study

What the research says

1 study
  1. Study: Removal of Toxic and Essential Nutrient Elements from Commercial Rice Brands Using Different Washing and Cooking Practices: Human Health Risk Assessment

    Cooking rice in lots of water and pouring out the water after cooking washes away more of the harmful arsenic than cooking it in just enough water to soak up. This study proved that the old way removes more poison.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

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