Rice is a staple food in many diets worldwide, but it also contains high levels of arsenic. To reduce arsenic levels in rice, a recent study suggests using a coffee maker to cook the rice, which is more effective than traditional methods.
What is Arsenic, and How Does It Get Into My Rice?
Arsenic is a natural semi-metallic chemical often found in groundwater. Rice absorbs higher levels of arsenic compared to other foods due to its cultivation in flooded paddies.
While the FDA states that rice’s arsenic levels are not likely to cause health problems, experts recommend rinsing rice thoroughly with hot water before consumption to reduce arsenic intake.
What are the Health Effects of Arsenic?
Arsenic poisoning, known as arsenicosis, can occur with high intake. Symptoms include abdominal pain, diarrhea, dark urine, vertigo, and in severe cases, death.
When rice comes in contact with water, arsenic becomes mobile and separates from the grain, as reported by Scientific American.
How to Cook Rice to Remove Arsenic
Researchers suggest using a steam apparatus or cooking rice in a coffee maker to reduce arsenic levels. This method has shown a 60-70% decrease in arsenic content. While not practical for everyday cooking, it may inspire new rice cooking machines.
Other methods to reduce arsenic in rice include soaking rice overnight and rinsing with clear water before cooking. Varying your diet and including different grains can also help lower arsenic consumption.
The Bottom Line
The Wrong Way to Cook Rice: Rinsing quickly and cooking in a 2:1 water to rice ratio on the stovetop.
The Right Way to Cook Rice: Soak overnight, rinse until water is clear, and cook with a 5:1 water to rice ratio, as recommended by Independent.

Sources
- Meharg AA, Carey M, Jiujin X, Farias JM. Rethinking Rice Preparation for Highly Efficient Removal of Inorganic Arsenic Using Percolating Cooking Water. PLOS ONE. 2015. https://www.independent.co.uk/life-style/health-and-families/health-news/rice-cooking-arsenic-traces-poisonous-boil-water-away-drain-excess-danger-food-a7568436.html