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Kraut Source Fermentation Kit


Master one of the oldest forms of food preservation with the Kraut Source Fermentation Kit from San Francisco, California. Kraut Source makes it easy to craft probiotic-rich foods by the quart.

To get started, grab a bunch of your favorite veggies or fruit and consult the side of the compostable box for spice suggestions. The paper insert is embedded with dill seeds that can be planted and harvested to flavor your future ferments. This stainless steel product was designed by Karen Diggs in San Francisco and assembled in California.

Ships within 4 business days at a flat rate of $8.95. 


The fermentation kit includes:

  • 1 stainless steel unit with 1 FDA food-grade silicone gasket attached
  • 1 quart-size, wide-mouth mason jar
  • 4-ounce pack of sea salt
  • 1 pack of custom organic spices
  • 1 spare FDA food-grade silicone gasket
  • Instruction manual with a link to a downloadable recipe booklet

Ships within 4 business days for a flat rate of $8.95.

The Artisan

Karen Diggs, Kraut Source
San Francisco, California

Karen Diggs, the San Francisco–based founder of Kraut Source, is an entrepreneur, chef, nutritionist, and author of Happy Foods: Over 100 Mood-Boosting Recipes.

The Hawaiian native began her career as a classically trained chef; she can make pâtés, soufflés—the whole shebang. She got her start in Hong Kong, where she spent seven years first as a chef at the Mandarin Oriental Hotel before starting two restaurants. In all her culinary training, fermentation really never came up, even among the old-style European chefs she studied under. Read more –>


Book Recommendation

Karen recommends her book Happy Foods: Over 100 Mood-Boosting Recipes for those who want to make better food choices to live healthier, happier lives.

Karen loves this book for two reasons. First, she wrote it! Second, because “it contains gluten-free, healthy recipes that are delicious and may even improve your mood!”


Check out this fun little video from Karen.


Carrot, Radish & Apple Ferment Recipe
Shared by Karen Diggs of Kraut Source

The combination of these three ingredients is the perfect ménage à trois of flavors.


  • 1 tablespoon (15 milliliter) sea salt
  • 2 cups (480 milliliter) filtered water
  • 1.5 teaspoons (7.5 milliliter) fennel seeds
  • 2 medium carrots, sliced
  • 1 small Fuji apple, sliced
  • 8 to 10 radishes, sliced

Note: Total weight of the last three ingredients should be about 14 ounces (397 grams)


  1. Bring the filtered water to a boil. Pour into a glass, stainless steel, or ceramic bowl, and dissolve the salt. Allow to cool completely (this is the brine).
  2. Place the cut ingredients into a bowl and mix well.
  3. Put the mixture into a quart-size, wide-mouth mason jar. The mixture should reach the shoulder of the jar.
  4. Pour the brine into the jar until it reaches about 1 inch (2.5 centimeters) above the vegetables.
  5. Place Kraut Source onto the jar (or use whatever small-batch fermentation system you’d like). Allow to ferment for 7 to 10 days in a cool spot, away from direct sunlight.
  6. When the vegetables taste good to you, put a top on the jar and transfer it to the refrigerator.