Step 2A - Fermentation Time!
Cover the top of the jar with a cloth, paper towel or parchment paper held by elastic. This is so your kefir grains can breathe while at the same time protecting it from contamination like dust and fruit flies.

LID: Putting a lid on the jar can cause the jar to explode due to the natural carbonation process taking place. If you really want to put a lid on, make sure it is loose.

Step 2B - Fermentation Duration and Storage
  • Store the ferment jar in a dark environment away from sunlight.
  • Check on the ferment jar periodically and stir it
  • Leave it for 30-48 hours (preferably 48 hours) or 2 days
How do I know if my water kefir grain is working?
1) Get a straw and immerse the tip into the water kefir jar
2) Put your thumb on the other end of the straw to block the hole
3) Take the straw out and there should be liquid trapped inside the straw

You can taste the liquid from there without contaminating the water kefir.

Summer: During the summer, the water kefir grains will ferment a lot faster where it cuts down the fermentation time to 24-30 hours. Make sure you check on it periodically and do the straw taste test.

Winter: Cold temperature will slow down the water kefir fermentation to the point where you can leave it up to 3 days. However, we always recommend our customers to check on it after 2 days (or 48 hours).
Carbonation, Bobbing Grains, Kefir Grain Movement
CARBONATION: If you tap the jar lightly with your finger or with a spoon, you may see some tiny bubbles floating to the surface. This is a good indication of proper activity.

BOBBING GRAINS: You will see grains floating at the top of the jar. This is normal!

  • You will also see some water kefir grains moving up and down the jar. This is normal!
  • You will also see NO MOVEMENT. This is ALSO normal!
It is not an indication of a poor ferment if you don't see the kefir grains moving up and down. In fact, most of the time they do not bob or travel. When the conditions are just right (you may find in a particular season, with a particular amount of sugar, and certain ingredients) the grains will grow and ferment in such a way that their shape traps carbonation bubbles in their matrix temporarily - allow the kefir grain to move upwards until the gas dissolves and thus traveling back down.