Best Fermentation Jars
Updated How we research
JILLMO Wide Mouth Glass Fermentation Jar with Airlock and Glass Weight, 2L (64oz) Fermenting Jar, Pack of 2
JILLMO's Pack of 2 wide mouth 2L (64oz) glass fermentation jars with airlocks and glass weights.
JILLMO Wide Mouth Glass Fermentation Jar with Airlock and Glass Weight, 1.5L Fermenting Jar, Pack of 2
JILLMO's Pack of 2 wide mouth 1.5L glass fermentation jars with airlocks and glass weights.
Fermentation jars are built to handle active cultures, which makes them a natural fit for a bubbling sourdough starter. The key feature is managing the gases fermentation produces, whether through a vented lid, an airlock, or a loosely fitted cover, so pressure escapes without letting the culture dry out. That balance keeps your starter lively between feedings. Below we compare fermentation jars useful to bakers and other fermenters. We look at the venting approach, ease of cleaning, visibility of the contents, and how well each seals when you want to slow things down in the fridge. While marketed broadly, many of these jars double neatly as a home for sourdough, giving your culture room to breathe and rise.
The short version
We compared 8 picks. Our scores range from 6.3 to 7.6 out of 10.
- Best overall:JILLMO Wide Mouth Glass Fermentation Jar with Airlock and Glass Weight, 2L (64oz) Fermenting Jar, Pack of 2. Highest overall score in this guide at 7.6/10.
- Also great value:JILLMO Wide Mouth Glass Fermentation Jar with Airlock and Glass Weight, 1.5L Fermenting Jar, Pack of 2. Value score of 8/10, overall 7.6/10.
- Solid build:Glolaurge 1.8L Wide Mouth Fermentation Jars with Airlocks, 2-Pack, Glass Jars with Self-Burping Airlocks. Build and materials score of 7/10, overall 7.5/10.
- Feature-rich:2 Pack 1 Gallon Large Fermentation Jars with 3 Airlocks and 2 Screw Lids, Wide Mouth Glass Jars with Scale Mark. Features score of 8/10, overall 6.8/10.
Scores are our editorial assessment, not customer ratings. How we score
- 1.JILLMO Wide Mouth Glass Fermentation Jar with Airlock and Glass Weight, 2L (64oz) Fermenting Jar, Pack of 27.6/10See on AmazonCheck price
- 2.JILLMO Wide Mouth Glass Fermentation Jar with Airlock and Glass Weight, 1.5L Fermenting Jar, Pack of 27.6/10See on AmazonCheck price
- 3.Glolaurge 1.8L Wide Mouth Fermentation Jars with Airlocks, 2-Pack, Glass Jars with Self-Burping Airlocks7.5/10See on AmazonCheck price
- 4.ETITSA Glass Jar with Lid 2.5 Liter Fermentation Jar, Wide Mouth Fermenting Kit Crock with Water Seal Airlock Lid7.0/10See on AmazonCheck price
- 5.2 Pack 1 Gallon Large Fermentation Jars with 3 Airlocks and 2 Screw Lids, Wide Mouth Glass Jars with Scale Mark6.8/10See on AmazonCheck price
- 6.Folinstall 1.5 Gallon Large Fermentation Jars with 2 Airtight Lids and 3 Airlocks, Wide Mouth Glass Mason Jar, 2 Pack6.6/10See on AmazonCheck price
- 7.FastRack 1 Gallon Mason Jar Wide Mouth and Twin Bubble Airlock for Fermentation, BPA-Free Glass Jar with Lid6.3/10See on AmazonCheck price
- 8.2 Pack Large Fermentation Jars, 1.5 Gallon Glass Jars with Airtight Lid and 3 Airlocks, Large Mason Jars with Scale Line6.3/10See on AmazonCheck price
#1JILLMO's Pack of 2 wide mouth 2L (64oz) glass fermentation jars with airlocks and glass weights.
Fit for the job 7/10 · Features and specs 8/10 · Build and materials 8/10 · Value 8/10
- + Airlocks let gases escape without letting air or insects in
- + Glass weights keep vegetables submerged during fermentation
- + 2L size is great for sauerkraut, pickles and kombucha
- - Airlocks are for sealed vegetable ferments, not ideal for a sourdough starter
- - Glass weights are mainly useful for pickles, not bread
#2JILLMO's Pack of 2 wide mouth 1.5L glass fermentation jars with airlocks and glass weights.
Fit for the job 7/10 · Features and specs 8/10 · Build and materials 8/10 · Value 8/10
- + 1.5L size suits smaller vegetable ferments and pickles
- + Glass weights keep ingredients below the brine line
- + Airlocks vent gas automatically without burping jars
- - Airlock lids are designed for vegetables rather than sourdough starters
- - Weights take up space that a starter would need to rise
#3Glolaurge's 2-Pack of 1.8L wide mouth glass fermentation jars with self-burping airlocks.
Fit for the job 7/10 · Features and specs 8/10 · Build and materials 7/10 · Value 8/10
- + Self-burping airlocks release pressure without manual venting
- + 1.8L jars are a moderate size for pickles and ferments
- + Wide mouth allows easy packing and cleaning
- - Airlock design is aimed at vegetables, not starter feeding
- - Two jars may be more than casual fermenters need
#4ETITSA's 2.5 Liter wide mouth glass fermentation jar with a water seal airlock lid, a crock-style fermenting kit.
Fit for the job 7/10 · Features and specs 7/10 · Build and materials 7/10 · Value 7/10
- + Water seal airlock lid vents gas while blocking air
- + 2.5 Liter size is flexible for vegetables and larger levain builds
- + Glass body lets you see fermentation progress
- - Water seal lid needs topping up with water to keep working
- - Designed for vegetables more than sourdough starters
#5A 2 Pack of 1 Gallon wide mouth glass fermentation jars with 3 airlocks, 2 screw lids and scale marks.
Fit for the job 5/10 · Features and specs 8/10 · Build and materials 7/10 · Value 8/10
- + 1 Gallon capacity handles large batches of kombucha or sauerkraut
- + Scale marks help track volume during fermentation
- + 3 Airlocks provide a spare for when one wears out
- - Gallon jars are too large for a home sourdough starter
- - Big glass jars are heavy and hard to store when full
#6Folinstall's 2 Pack of 1.5 Gallon wide mouth glass mason jars with 2 airtight lids and 3 airlocks for fermentation.
Fit for the job 5/10 · Features and specs 8/10 · Build and materials 7/10 · Value 7/10
- + 1.5 Gallon capacity suits big batches of kimchi or kombucha
- + 3 Airlocks and 2 airtight lids offer flexible sealing options
- + Wide mouth jars make filling and cleaning easier
- - Far too big for a sourdough starter or levain
- - Heavy glass jars are hard to move when full
#7FastRack's 1 Gallon BPA-free wide mouth mason jar with a twin bubble airlock for home fermentation.
Fit for the job 5/10 · Features and specs 7/10 · Build and materials 7/10 · Value 7/10
- + Twin bubble airlock gives a visible sign of fermentation activity
- + FastRack is a known supplier of home brewing gear
- + 1 Gallon jar handles large batch ferments
- - Single jar with a large capacity is overkill for starters
- - Airlock setup is geared to brewing, not bread
#8A 2 Pack of 1.5 Gallon large glass fermentation jars with airtight lids, 3 airlocks and scale lines.
Fit for the job 5/10 · Features and specs 7/10 · Build and materials 7/10 · Value 7/10
- + Scale lines help measure liquid and track fermentation
- + 3 Airlocks included for vegetable and kombucha ferments
- + Two large jars allow multiple ferments at once
- - 1.5 Gallon jars are much bigger than sourdough starters need
- - Airtight lids are unsuitable for an active starter without airlocks
Before you buy: trade-offs we flagged
No pick is perfect. These are the main compromises we noted for the top products in this guide, so you can check they will not matter for you.
- Airlocks are for sealed vegetable ferments, not ideal for a sourdough starter (JILLMO Wide Mouth Glass Fermentation Jar with...)
- Airlock lids are designed for vegetables rather than sourdough starters (JILLMO Wide Mouth Glass Fermentation Jar with...)
- Airlock design is aimed at vegetables, not starter feeding (Glolaurge 1.8L Wide Mouth Fermentation Jars...)
- Water seal lid needs topping up with water to keep working (ETITSA Glass Jar with Lid 2.5 Liter...)
- Gallon jars are too large for a home sourdough starter (2 Pack 1 Gallon Large Fermentation Jars with...)
- Far too big for a sourdough starter or levain (Folinstall 1.5 Gallon Large Fermentation Jars...)
Frequently asked questions
›What is the best choice among fermentation jars?
JILLMO Wide Mouth Glass Fermentation Jar with Airlock and Glass Weight, 2L (64oz) Fermenting Jar, Pack of 2 is our top overall pick. JILLMO's Pack of 2 wide mouth 2L (64oz) glass fermentation jars with airlocks and glass weights. It earns our score of 7.6/10, based on fit for the job, features, build and value.
›What is a good budget option?
JILLMO Wide Mouth Glass Fermentation Jar with Airlock and Glass Weight, 1.5L Fermenting Jar, Pack of 2 is the strongest low-cost pick in this guide. JILLMO's Pack of 2 wide mouth 1.5L glass fermentation jars with airlocks and glass weights.
›How much should I expect to spend?
Picks in this guide span See on Amazon price bands (roughly: $ = under $30, $$ = $30 to $100, $$$ = over $100). We never display exact prices because they change constantly, so the buttons above always show Amazon's current price.
›How were these products chosen?
We shortlist products that fit the job this guide solves and compare their published specifications, such as size, capacity, materials and what is included. Each pick gets an editorial score out of 10 for fit, features, build and value, and we write the pros and cons from those details. Our score is not an Amazon customer rating. We earn a commission if you buy through our links, which never affects the ranking.
Sourdough Gear Hub independently selects every product; we may earn a commission from links above.
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