A Germ Expert Explains How Often We Should Be Washing Sweaters


According to environmental toxin expert and the founder of Slightly Greener Tonya Harris, two to five wearings before washing is average, “but it also depends on factors such as how the sweater is worn and what the material is made out of.”

If you wore something under your sweater, for example, that will extend the life of your sweater by reducing the number of times it needs to be washed, she says.

Material-wise, things like cotton, cashmere, and silk should be washed after two to three wears, while more durable materials like wool or hardy synthetic blends can be worn up to five times.

In short, you definitely don’t need to wash your sweaters every time you wear them, and if you want to spread out the time between washes, your best bet is to wear an undershirt.

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