/r/fermentation/

r/fermentation

329k members
r/fermentation is a subreddit with 329k members. The community frequently discusses fermentation, looking, ginger bug, fermenting, and sauerkraut, and they frequently recommend/review sugar and containers, and the most common flair used is kraut/kimchi, pickles/vegetables in brine, hot sauce, ginger bug/soda, and other.
Welcome to r/fermentation! This community is devoted to the craft, science, and culture of fermentation. From sauerkraut and sourdough to kombucha, kimchi, yogurt, and beyond, we explore the traditions and innovations that bring microbes, time, and ingredients together. Our aim is to promote safe, accurate, and inspiring fermentation practices while fostering curiosity, creativity, and shared knowledge for beginners and experts alike.

Popular Topics in r/fermentation

#1

Fermentation

124 posts
#2

Looking

47 posts
#3

Ginger Bug

31 posts
#4

Fermenting

29 posts
#5

Sauerkraut

28 posts
#6

Kimchi

23 posts
#7

Ferment

22 posts
#8

Tepache

22 posts
#9

Mold

20 posts
#10

Vinegar

19 posts

Products Discussed in r/fermentation

Sugar

3 reviews
#1
Honey
5.0★ from 1 review
#2
Apple Juice Concentrate
4.0★ from 1 review
#3
White Sugar
4.0★ from 1 review

Containers

2 reviews
#1
Ball Mason Jars
5.0★ from 1 review
#2
Glass Bottles
4.0★ from 1 review

Flair Used in r/fermentation

#1
Kraut/Kimchi
: "Put up 2 1/4 gallons of sauerkraut today. First time we've ever made it from cabbages we grew."
18 posts
#2
Pickles/Vegetables in brine
: "No added liquid - tomato ferment"
8 posts
#3
Hot Sauce
: "Fermenting Hot Sauce"
7 posts
#4
Ginger Bug/Soda
: "I forgot about my ginger bug and have grown an alien"
4 posts
#5
Other
: "Best mustard yet!"
4 posts
#6
Dairy
: "Second Try of making homemade yogurt today, i will update the result in 15 hours"
4 posts
#7
Vinegar
: "What is this in my red wine vinegar (in progress)"
4 posts
#8
Spicy/Garlic Honey
: "Am I about to poison my entire family BC I had no idea about botulism?"
2 posts
#9
Fruit
: "First time fermenting in vacuum bags"
2 posts
#10
Beer/Wine/Mead/Cider/Tepache/Kombucha
: "Decanted the beet kvass"
2 posts

Member Growth in r/fermentation

Yearly
+45k members(16.0%)

Similar Subreddits to r/fermentation

/r/FermentedHotSauce

r/FermentedHotSauce

44k members
35.9% / yr
/r/Kefir

r/Kefir

45k members
33.9% / yr

r/kimchi

60k members
42.3% / yr

About

GummySearch helps people research Reddit communities by organizing activity, growth, themes, and post-level signals into one place.

This page gives a focused view of r/fermentation, including current member size, discussion patterns, product reviews, and related communities to explore.

This data is synced periodically so insights stay current and useful for ongoing research.

Last updated: October 15, 2026