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The best fermentation weights sit just inside a jar’s shoulder and hold vegetables below the brine, where oxygen-loving mold cannot grow. Glass weights are non-reactive, easy to clean and do not absorb smells; handled weights are much easier to lift out.
We compared six glass weight sets on Amazon US by fit, handle design and reviews.
Quick Answer: The Best Fermentation Weights
- Best OverallOkllen 9 Pack Glass Fermentation Weights with Easy Grip Handle
- Best Starter4 Pack Easy Grip Handle Glass Fermentation Weights for Wide Mouth Jars
- Highest RatedCedilis 9 Pack Glass Fermentation Weights with Easy Grip Handles
- Best Heavy 4-PackGlass Fermentation Weights for Wide Mouth Mason Jars, Set of 4, Easy Lift Handles
- Best Value 9-Pack9 Pack Glass Fermentation Weights with Easy Grip Handle
- Best With LidsMasontops Complete Mason Jar Fermentation Kit
Okllen’s 9-pack is our top pick, with handled glass weights and about 530 ratings. The easy-grip 4-pack is the best starter set, Cedilis’s 9-pack has the highest rating, and the Masontops Complete kit is best if you also need lids.
Best Fermentation Weights Comparison Table
| Product | Best For | Type | Key Feature | Buy |
|---|---|---|---|---|
| Okllen 9-Pack Weights | Best Overall | Glass fermentation weights | Handled glass weights | Check Price |
| Easy-Grip Weights 4-Pack | Best Starter | Glass fermentation weights | Handled weights | Check Price |
| Cedilis 9-Pack Weights | Highest Rated | Glass fermentation weights | Handled, heavy glass | Check Price |
| Glass Weights Set of 4 | Best Heavy 4-Pack | Glass fermentation weights | Heavy, handled | Check Price |
| 9-Pack Heavy Glass Weights | Best Value 9-Pack | Glass fermentation weights | Nine heavy weights | Check Price |
| Masontops Complete Kit | Best With Lids | Mason jar kit | Airlock lids, glass weights, tamper | Check Price |
The 6 Best Fermentation Weights
Ranked by fit, handling and value.
1. Okllen 9 Pack Glass Fermentation Weights with Easy Grip Handle
1. 9 handled weights.
👍 Pros & Cons
Pros
- About 530 ratings, 4.7 average
- Nine weights
- Easy-grip handle
Cons
- Wide mouth only
- Glass can chip
📄 Detailed Review
- Pieces: 9
- Material: Glass
- Fits: Wide mouth jars
A nine-pack of handled glass weights.
Great value for many jars.
2. 4 Pack Easy Grip Handle Glass Fermentation Weights for Wide Mouth Jars
2. 4-pack.
👍 Pros & Cons
Pros
- About 980 ratings, 4.7 average
- Cheap
- Easy to lift
Cons
- Only 4
- Wide mouth only
📄 Detailed Review
- Pieces: 4
- Material: Glass
- Fits: Wide mouth jars
Simple handled weights for mason jars.
Good starter pack.
3. Cedilis 9 Pack Glass Fermentation Weights with Easy Grip Handles
3. 4.8 average.
👍 Pros & Cons
Pros
- About 260 ratings, 4.8 average
- Highly rated
- Nine weights
Cons
- Fewer reviews
- Wide mouth only
📄 Detailed Review
- Pieces: 9
- Material: Glass
- Fits: Wide mouth jars
A highly rated nine-pack of glass weights.
Solid alternative.
4. Glass Fermentation Weights for Wide Mouth Mason Jars, Set of 4, Easy Lift Handles
4. 1,100 ratings.
👍 Pros & Cons
Pros
- About 1,100 ratings, 4.6 average
- Heavy enough to submerge veg
- Easy to clean
Cons
- Only 4
- Wide mouth only
📄 Detailed Review
- Pieces: 4
- Material: Glass
- Fits: Wide mouth jars
Well-reviewed glass weights with lift handles.
Reliable choice.
5. 9 Pack Glass Fermentation Weights with Easy Grip Handle
5. Heavy glass.
👍 Pros & Cons
Pros
- About 710 ratings, 4.6 average
- Nine weights
- Heavy
Cons
- Wide mouth only
- Takes storage space
📄 Detailed Review
- Pieces: 9
- Material: Glass
- Fits: Wide mouth jars
Another value nine-pack of glass weights.
Good for big fermenting setups.
6. Masontops Complete Mason Jar Fermentation Kit
6. Complete kit.
👍 Pros & Cons
Pros
- About 4,800 ratings, 4.8 average
- Everything but jars
- Waterless airlocks
Cons
- Jars not included
- Pricier
📄 Detailed Review
- Fits: Wide mouth jars
- Includes: 4 lids, 4 weights, tamper
- Jars: Not included
The most-reviewed complete mason jar fermenting kit on Amazon.
Our top fermentation kit.
How We Chose the Best Fermentation Weights
To build this guide to the best fermentation weights, we compared fermentation crocks, jars, lids, weights and kits sold on Amazon US by material (stoneware, glass, food-grade plastic and silicone), capacity, water-seal or airlock design, weight fit and cleaning. We then read patterns in verified-buyer reviews for leaks, mold, cracks, odors and fit on standard mason jars, and flagged listings with few ratings.
Use clean equipment, the right salt ratio and keep vegetables under the brine, following USDA Food Safety and Inspection Service cleanliness guidance. Discard batches with fuzzy or colored mold. Our method is explained on the How We Test page; this is a research-based guide, not a lab test.
Buying Guide: Fermentation Weights
Jar Fit
Most weights fit wide-mouth jars only.
Handles
Handles make weights easy to remove.
Material
Glass is non-reactive and easy to clean.
Weight
Heavier weights hold floating veg down better.
Headspace
Leave room above the weight for brine.
Tips for Safe Home Fermenting
- Weigh salt; about 2% of the vegetable weight is a common starting point for sauerkraut.
- Keep vegetables fully under the brine with a weight.
- Ferment at about 60–75°F, away from direct sun.
- Leave headspace in jars for bubbling brine.
- Taste often and move to the fridge when you like the flavor.
Quick answers to common questions about the best fermentation weights.
Frequently Asked Questions
What are the best fermentation weights?
Okllen’s 9-pack glass weights.
Do I need fermentation weights?
They make it much easier to keep vegetables submerged.
Do glass weights fit regular-mouth jars?
Most do not; buy weights sized for your jars.
Can I use a plastic bag of brine instead?
Yes, as a backup.
Final Verdict
Our pick for the best fermentation weights is the Okllen 9-pack. For a starter set, choose the easy-grip 4-pack.
Related Guides
Keep exploring fermentation and storage gear with these guides:
Prices and availability change often. Check the current listing on Amazon before you buy.
