I have cloth bags labeled for Save Mart and WinCo Foods. Have no problem keeping them clean—I just wash them in a sink with warm, soapy water and then air dry them.
And that’s a pain. Just like hand-wash clothes is.
Whatever floats your boat. Just bear in mind, now you’re using (if you’re responsible) evil detergent and using too much water.
Trust me - you cannot win with the EnvironMental religion. Not if they are honest.
If you are using those cloth bags to carry meat and veggies, they are not really clean unless you add bleach to your warm soapy water-then air dry them in the sunshine to de-germ them-but unless they are made of canvas, they will disintegrate...