DIY Minty Fresh Natural Mouthwash

I've written about my distaste for homemade toothpaste, the coconut oil + baking soda + peppermint essential oil phenomenon that is so popular on zero waste and DIY blogs.  If you're like me, don't feel guilty, and don't feel like you can't be part of the zero waste, plastic free club just because you prefer a different alternative to traditional toothpaste (I'm giving David's Toothpaste a try). 


  • Brush with bamboo toothbrush and traditional toothpaste (until I run out and can replace with David's)
  • Floss with traditional floss (until I run out and can replace it with a more sustainable option)
  • Rinse with Listerine 

I'm about to run out of Listerine, and decided to try to eliminate that piece of plastic packaging from my bathroom by not replenishing it, so I began looking for a DIY alternative that I can make with few ingredients and store in a glass bottle.  I found a great recipe from DIY Natural, which I tried yesterday. 


  • 1/2 cup filtered or distilled water
  • 2 tsp baking soda
  • 2 drops peppermint essential oil
  • 2 drops tea tree essential oil


I combined all these ingredients in a flip top glass bottle, shook them up and took a swig.  The peppermint essential oil gives it a minty flavor, while the tea tree oil (which is naturally antibacterial) gives it a slightly antiseptic taste.  The baking soda does lend a slightly salty flavor to it, but unlike with the baking soda toothpaste, I found that the salty flavor didn't overwhelm the flavors of the tea tree and peppermint oils, and didn't linger in my mouth afterwards.  My husband tried it and he liked it too.  It also does not give the alcohol burn that Listerine does, which intuitively I feel to be a good thing.  

I think we may have found a winner!