Fill a measuring cup with 2 cups of filtered water and whisk in the sea salt.
Add flavors that you choose to the jar first to keep them from floating. Then pack in carrots, making sure that the carrots are 1 inch below the top. Try to pack the carrots in tightly, then use a fermentation weight to keep them from floating above the brine. it is important that whatever weight you are using, the weights and all the carrots are below the brine level.
Be sure to leave a bit of head room for bubbling. Be sure to use a jar that will allow gas to escape during the ferment.
Add a fermenting lid or pickle pipe to the top, and then screw with a Mason jar band. Of a scrap of fabric and a rubber band.
Place the carrots in a dark, room-temperature location (a kitchen cupboard is perfect). Let them ferment for a minimum of 14 days up to 28 days. After 14 days, the carrots will be deliciously fermented but still crisp. They will continue to soften the longer they ferment.
Set the jar on a towel or plate to catch any possible brine overflow that will occur during the first week of fermentation
White bubbles or foam on the top is totally normal! That's a sign of a healthy ferment.
When you decide to end the fermentation period (a minimum of 14 days up to 28 days) is based on your taste preference. The longer the carrots ferment, the more their flavors will develop and their texture will slightly soften (yet still be crunchy). Open the jar and take a look. Most likely you’ll see a layer of kahm yeast on top. This is okay. With clean hands, reach in through the kahm yeast and remove the fermenting weight. Use a paper towel as a gripper if the weight is too slick. Remove any remaining kahm yeast. The good news is that the fermenting weight will take the bulk of the kahm yeast out with it. Next, use a paper towel to wipe off the remaining kahm yeast from the inside of the jar. You can also dab the surface with a paper towel (or use a spoon) to pick up the remaining kahm yeast flakes. Remember that kahm yeast is harmless so if some pieces remain, it’s ok!
Replace the fermentation lid with a plastic wide mouth plastic mason jar lid and store in the refrigerator. They will last for many months.