There's nothing grosser than stepping out of the shower and wrapping your clean body with a sour-smelling towel. It doesn't make any sense, you just washed it, right? Turns out, the surprising reason your towels smell less than great is usually because you're using too much detergent and fabric softener.
To get your towels smelling fresh again, all you need is one pantry staple: baking soda. Add half a cup on top of your towels for high-efficiency top or front loader, or one full cup of baking soda per load if you have a standard washing machine. Don't add any detergent or fabric softener. You might have to repeat these steps several times but the sourness will eventually go away.
For best results, hang your towels out in the sun and allow UV rays to naturally disinfect and clean your towels. So easy!