Add 1 quart of oat milk to a glass jar.
Mix in 1 packet Easy Kefir with a spoon or whisk or until all ingredients are thoroughly combined.
Place a lid on the jar and let it sit for 18 to 24 hours or until tart or sour tasting. It might separate into whey and curds. This is normal for non-dairy milks.
Place oat milk kefir in the refrigerator or enjoy immediately. It should keep for at least a month although it will continue to get more sour and tart.
If you like to make more kefir, take 1/4 cup of this mixture and 3 - 3/4 cups of fresh oat milk and culture again for 18 -24 hours or until tart.
You can do this many many times over or until it stops working and making the milk tart. Then you will need a new Easy