When black spots appear on refrigerator or washing machine rubber seals, many people assume it's just dirt, but it's usually mold. These appliances retain moisture, and the crevices in the seals easily trap grime, creating an ideal breeding ground for mold. Over time, mold spores accumulate in these gaps, forming visible black stains. If left untreated, this can compromise the seal’s integrity, leading to higher energy consumption, appliance damage, unpleasant odors, and bacterial growth that poses health risks. Therefore, regular cleaning and maintenance are crucial.

To clean the seals, experts recommend using a soft cloth or sponge dampened with warm baking soda water. Adding a small amount of neutral dish soap can enhance cleaning power. Gently wipe the entire seal, paying special attention to folds and crevices where mold and debris accumulate. During cleaning, frequently rinse the cloth or sponge to prevent recontamination.

After cleaning, wipe away any residue with a cloth dampened with warm water, then thoroughly dry the seal. Keeping the rubber seal dry prevents mold regrowth and odor formation. Performing this maintenance regularly extends the lifespan of your refrigerator and washing machine while preserving their sealing performance and hygiene.

Important Cleaning Tips: Avoid Chlorine Bleach and Abrasive Tools

This method applies to various appliances, including standalone freezers, wine coolers, and ice makers. However, experts strongly advise against using chlorine bleach or ammonia-based cleaners on rubber seals, as these chemicals can dry out and crack the rubber, shortening its lifespan. Also avoid abrasive powders or rough cleaning tools, which may scratch the surface, cause wear, reduce sealing effectiveness, and lead to performance issues.

How to Check if Refrigerator Seals Are Worn Out? Use the 'Dollar Bill Test' to Determine Replacement Timing

Regularly inspect the seals, especially corners and edges, for signs of aging, cracking, or damage. To test refrigerator seal effectiveness, place a dollar bill halfway into the door and close it. If you feel resistance when pulling it out, the seal is still good. If it slides out easily, the seal needs replacement. Experts emphasize that regular cleaning and inspection are essential habits for maintaining appliance efficiency.

Source: Tom's Guide, The Spruce Editor: Tsai Hui-Hsin

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  • Source: PR Times
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