Many people throw everything that needs washing into the washing machine without realizing that some items not only fail to get clean but can also get damaged, shorten the lifespan of the machine, or even cause fire hazards.

The washing machine is a helpful tool that saves time and effort, but not everything belongs in it. Some items are not only ineffective to wash but can also damage the machine, pose safety risks, or affect your health. Here are 5 things you should avoid putting in the washing machine:

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1. Shoes

Many people casually toss their shoes into the washing machine, but this is a big mistake. Sneakers, leather shoes, heels, or shoes with metal parts are difficult to clean and may dirty the drum, lose their shape, or harm the machine. Wet shoes are heavy and can damage the spinning shaft, increasing the risk of malfunction or even fire.

Additionally, bacteria such as E. coli or Staphylococcus aureus from shoes can transfer to clothing and pose health risks. Always wash shoes by hand or take them to a professional cleaning service.

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2. Latex, Feather, or Herbal Pillows

Not all pillows are machine-washable. Latex pillows, herbal pillows, and feather pillows can deform, crumble, or lose quality when washed in a machine. Detergent and water may not rinse out completely, causing mold and bacteria buildup, which may trigger allergies or respiratory issues.

If washed together with clothes, cross-contamination poses an even higher risk. Instead of machine washing, clean these pillows by hand or use a professional service.

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3. Clothing or Accessories With Metal Parts or Decorative Beads

Items such as dresses with metal pieces, large buttons, or decorative beads can come loose during washing. These pieces can scratch the drum, clog the drainage pipe, or tear other garments. More dangerously, metal parts can damage internal components, leading to electrical issues, leakage, or even fire.

Remove all detachable accessories before washing, or simply hand-wash the garment.

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4. Thick or Oversized Blankets

Large blankets made of cotton, wool, or synthetic fibers become extremely heavy when soaked with water, often exceeding the machine’s weight capacity. This can overload the motor, reduce washing efficiency, damage the spinning shaft, or cause electrical hazards.

The stuffing inside the blanket may also clump, shift, or clog the drum. It’s best to bring large blankets to an industrial laundry service.

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5. Down Jackets

Down jackets are not suitable for typical household washing machines. Machine washing can cause the feathers to clump together, reducing warmth and damaging the jacket’s structure. Detergent residue may irritate the skin, while loose feathers can clog the drainage system, leading to malfunction or even fire risk.

To keep your down jacket in good condition, hand-wash it or choose professional dry-cleaning.