To a quart jar, add 2 chopped apples and 1 quart of water.
Use parchment paper or a weight to submerge the apples.
Burp daily for 3-5 days until bubbles form.
Once bubbling, strain the soda starter into a new jar or swing top bottle.
Add 1 cup of soda starter and 2 cups of grape juice to the new jar.
Let sit for 1-3 days or until ready, burping daily to release gases.
Enjoy!
