In a quart mason jar, combine the sugar and 1/2 cup boiling water.

Stir until the sugar is completely dissolved.

Pour 3 cups of cold water into the jar.

Add the water kefir grains.

Cover the jar with a cloth napkin, cheesecloth, or coffee filter secured with a rubber band.

Place the jar at room temperature out of direct sunlight for 24-48 hours.

Pour the juice or fruit into a swing-top glass bottle.

Using a mesh strainer and funnel, strain the water kefir into the glass bottle. The kefir grains that stay in the strainer will be used to make your next batch.

Seal the bottle with the swing top lid, and place it at room temperature out of direct sunlight for 1-7 days.

If you let it ferment longer than 2 days, you will need to burp the lid to release pressure every day or so.

Once you are done fermenting your water kefir, place it in the fridge to chill and enjoy!