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Refreshing Grapefruit Water Kefir

Reminiscent of commercial grapefruit-flavored sodas, this tangy beverage is perfectly refreshing. Use red grapefruit for the prettiest color and sweetest flavor.


  • 3-4 cups water kefir
  • Juice of ½ large grapefruit
  • 1 teaspoon sugar


  1. Combine water kefir with grapefruit juice and sugar in airtight bottles, leaving headspace in each one.
  2. Cap tightly and culture 24-72 hours. 
  3. Chill in refrigerator.

Serve cold or over ice.


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Glass of grapefruit soda surrounded by grapefruit halves on white background

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