Go Back
How to ferment oats probiotic lacto fermented oats method 2

Lacto-fermented Oats

Probiotic, creamy oatmeal using live cultures from whole ingredients!
5 from 1 vote
Prep Time 5 mins
Fermenting Time 2 d
Total Time 2 d 5 mins
Course Breakfast, Dessert, Main Course
Cuisine British, International
Servings 1 bowl
Calories 250 kcal


  • Bowl / Container (Fermentation-safe - See notes)
  • Small Dish, Tea Towel, or Cheesecloth (To cover container)
  • Tablespoon


  • 60 grams Oats Groats or steel-cut are best, but any type will do
  • 2 tbsp Lacto-fermented (Probiotic / Live) Yoghurt, Kefir, or Buttermilk You can also use dairy-free alternatives
  • 2 cups Tepid Water Boiled and cooled, or filtered to remove chlorine



  • Grind the oats and add to the bowl. Any method will work (even clean hands), as long as it releases the starches.
    Step 1 Grind the Oats (Ground organic whole oats) - How to Ferment Oats
  • Add your tepid (chlorine-free) water to the bowl. This should ideally be room-temperature to lukewarm, but not hot.
  • Stir in 2 tablespoons of live yoghurt (or your other probiotic source).
    How to ferment oats probiotic lacto fermented oats method 2
  • Place bowl in a warm place. The countertop or - especially in winter - somewhere like on top of your fridge.
  • Cover with your dish or cheesecloth.
    Step 4 Cover bowl and keep warm to ferment - How To Ferment Oats - A Probiotic Recipe


  • Check the oats and stir daily. This stage takes on average 1 to 3 days for optimal results.
  • Always keep the oats fully submerged.

Digging in!

  • Eat uncooked or cooked. Simply strain, add water or milk of your choice, season, and cook as normal!
  • Scroll down for recipe ideas!


IMPORTANT: Read the safety notice further in the post - this is a fermented product so proper precautions are a must.
The instructions for this recipe are almost identical to the first method.
To dechlorinate water: You can use a Water Filter (See Recommendations) or simply boil the water to remove the chlorine.
Make sure you let it cool to a lukewarm temperature before you use it, otherwise the heat will kill the beneficial bacteria and denature the phytase.
For the container: Remember, you should use ceramic, china, stainless steel 316, glass (but keep in a dark place), or Polycarbonate, PP, HDPE, or LDPE Plastic containers only.
Other plastics and metals will react with the acidity and interfere with the natural processes of fermentation. For example, non-steel containers will rust, and plastic may leech.


Keyword Dairy, Fermented, Lacto-fermented, Probiotic, Wholegrain