Add clean vegetable scraps to crock pot and cover with water. Add seasonings if desired. Cook on high for 5-6 hours or low for 7-8 hours.
Strain with a mesh sieve and store in containers or mason jars in refrigerator or freezer. If freezing, do not fill up all the way since it will expand.
The provided nutrition information does not include any added sodium from seasoning to taste, any optional ingredients, and it does not take brands into account. Feel free to calculate it yourself using this calculator or by adding the recipe to Yummly.