r/fermentation is a subreddit with 327k 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 hot sauce, pickles/vegetables in brine, other, bread/rice/corn/oats/barley, and kraut/kimchi.
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
Hot Sauce
: "Fermented Blueberry hot sauce with home grown peppers!"
14 posts
#2
Pickles/Vegetables in brine
: "Lightly fermented green mustard greens with a mustard-like kick"
12 posts
#3
Other
: "Various weird misos + jangs I made (green spirulina, blue spirulina, cocoa)"
9 posts
#4
Bread/Rice/Corn/Oats/Barley
: "Cheddar bacon jalapeño sourdough loaf. It was a gift so unfortunately I don't have a picture of the inside crumb :( sorry!"
4 posts
#5
Kraut/Kimchi
: "Cabbage & Carrot Kraut Appreciation Post"
4 posts
#6
Beer/Wine/Mead/Cider/Tepache/Kombucha
: "“Sop it to me” hard tropical soursop punch"
4 posts
#7
Vinegar
: "Playing around! Right now I have raisin vinegar newly started in just water. Fully wild. Peach & apple are 2 weeks old & strained now. They really didn’t fizz much at all, but smell a bit boozy. Tomato with the green band died by floating, I made another but I’m fighting to keep it submerged!!"
4 posts
#8
Spicy/Garlic Honey
: "garlic honey ratios + space"
3 posts
#9
Ginger Bug/Soda
: "my first ginger bug"
2 posts
#10
Meta
: "fermentation might be the only hobby where forgetting about a project can be part of the process"
1 post
Member Growth in r/fermentation
Yearly
+46k members(16.2%)
Similar Subreddits to r/fermentation
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Last updated: October 1, 2026