Add Yahoo as a preferred source to see more of our stories on Google. Credit: Cris Cantan/Getty Images Doing laundry is a necessary part of a household cleaning routine—but one aspect that might get ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Andrea Barnes Andrea Barnes is a writer covering large cleaning appliances.

For something that does so much cleaning—washing is actually in the name—your washing machine isn't very clean itself, says Jennifer Ahoni, principal scientist for Tide and senior scientific ...