Brown Buildup in Rice Cooker Drains Power! Use 2 Natural Ingredients Recommended by Tan Dunci to Remove Stubborn Stains and Restore Like New

Rice cookers are essential household appliances, widely used for steaming and boiling various dishes. However, frequent use often leads to stubborn yellow stains accumulating on the bottom. A netizen recently posted online asking how to clean these stains, prompting many to recommend using citric acid or lemons. Home care experts also suggest boiling a mixture of citric acid and water, then soaking it to easily remove the yellow residue. Taipower and Tan Dunci, known as the 'Mother of Non-Toxic Living,' both endorse using two natural ingredients to restore heavily soiled rice cookers to a like-new shine.

Brown residue on rice cooker bottoms increases power consumption—experts reveal effective cleaning methods

A user posted a photo of their rice cooker in the Facebook group 'I Love PX-Mart – Honest Reviews,' showing a thick layer of yellow buildup on the base. They asked, 'What cleaner can remove this?' Many users responded, 'Use food-grade citric acid with warm water and soak for a while—it cleans very well,' or 'Buy citric acid, soak in warm water for an hour, and the stains will disappear.'

Others cautioned, 'Never use citric acid on aluminum rice cookers—it can damage them. Only use it if you have a 304 stainless steel model—confirm first.' For those without citric acid, some shared that fresh lemon juice works just as well. 'I don’t have citric acid, so I use lemon juice—mix it with water, turn on the cooker, let it soak a bit, and it gets quite clean without scrubbing hard.' Another said, 'Lemons work great—I always toss in the squeezed lemon halves and boil them. It comes out sparkling!'

Home care expert Chen Yingru shared her citric acid cleaning method on her Facebook page. First, add 30 grams of citric acid to the outer pot, then fill with water to 60–70% capacity. Turn on the heat, bring to a boil, then switch off the power and let it soak for 2–3 hours. After discarding the solution, gently wipe with a sponge to remove stubborn stains. Chen also warns that citric acid is effective for removing limescale and mineral deposits but is not a universal cleaner. She advises against mixing it with bleach, as it may damage the rice cooker.

Taipower specifically warns that failing to clean the outer pot regularly creates a 'thermal insulation layer' during heating, reducing heat transfer efficiency. This not only prolongs cooking time but also causes a significant spike in electricity usage, turning your rice cooker into a 'power-hungry monster' at home. To balance energy savings, hygiene, and taste, both Taipower and Tan Dunci recommend natural cleaning methods. Tatung Rice Cooker’s official site also outlines key maintenance warnings to help extend appliance lifespan.

Taipower and Tan Dunci’s natural rice cooker cleaning method—restore shine with just two ingredients

To remove stubborn grease, simply use natural household items:

Cleaning essentials: - A moderate amount of white vinegar, or - One fresh lemon (cut in half or quarters)

Steps: 1. Place lemon or vinegar in the outer pot and add water until the stained areas are fully submerged (you can also place greasy steam racks or trays inside). 2. Press the heating button and let it boil for about 10 minutes. 3. Manually turn off the power (unplug the cord) and let the lemon or vinegar water soak for 2–3 hours.

Once the water has cooled and is safe to touch, pour it out and gently wipe with a sponge or cloth. Stubborn limescale will come off easily, leaving a natural fragrance and eliminating food odors.

Tan Dunci warns that traditional rice cookers (like Tatung models) automatically switch off only when the outer pot water evaporates. If you add too much water for cleaning, it takes a long time to evaporate, and leaving the appliance unattended risks dry-burning. Therefore, 'once the water boils, immediately turn off manually and unplug. Never leave the area!'

Taipower recommends using dedicated steam racks or trays to cook multiple dishes at once—stacked steaming maximizes energy efficiency. For strong-smelling dishes like seafood, place them on the top layer to prevent dripping and flavor mixing during convection, preserving the original taste. Also, even after the rice cooker switches to 'keep-warm' mode, prolonged use still consumes significant electricity and creates a warm environment ideal for bacterial growth. It’s best to turn off the power immediately after use.

Tatung Rice Cooker Official Maintenance Guide: 3 Cleaning Pitfalls to Avoid

Tatung’s official manual includes these key warnings:

1. Never submerge the entire rice cooker in water While the inner wall of the outer pot can be rinsed with water, never immerse the entire outer pot in water or soak it. After washing, immediately dry thoroughly with a clean cloth to prevent water from seeping into the unit and damaging components.

2. Never use steel wool or abrasive cleaners Only use neutral detergents (dish soap or mild soap) with a sponge or soft cloth. Avoid steel brushes, rough scrubbers, or abrasive powders, as they can scratch the stainless steel surface.

3. For severe limescale If limescale is deeply embedded, pour one measuring cup of white vinegar into the pot, add water to 80% full, heat to boiling, then let it sit. This will significantly improve the condition.

Source: 'I Love PX-Mart – Honest Reviews,' 'Chen Yingru – Sona Queen’s Life Notebook' Editor: Lin Li