Bentgo Signature Leak-Proof Glass Food Storage 12-Piece Set vs Weck 742 Mold Jar 1/2 L, Set of 6
Bentgo Signature Leak-Proof Glass Food Storage 12-Piece Set
The short answer
Bentgo Signature Leak-Proof Glass Food Storage 12-Piece Set comes out ahead overall with 7.9/10 against 6.9/10 for the Weck 742 Mold Jar 1/2 L, Set of 6. Bentgo Signature Leak-Proof Glass Food Storage 12-Piece Set is stronger on seal & leakproofing, health & materials, durability & heat safety, stain & odor resistance and ease of use. Weck 742 Mold Jar 1/2 L, Set of 6 is stronger on value. At current verified prices, the Weck 742 Mold Jar 1/2 L, Set of 6 costs about $20.00 less.
- Choose the Bentgo Signature Leak-Proof Glass Food Storage 12-Piece Set if: Meal-preppers who want leakproof, fully plastic-free glass lids from a set that independent testers have checked.
- Choose the Weck 742 Mold Jar 1/2 L, Set of 6 if: Buyers storing soups, yogurt, grains and fridge staples who want cheap, thick glass jars with replaceable parts.
Scores by criterion
| Criterion | Bentgo Signature Leak-Proof Glass Food Storage 12-Piece Set | Weck 742 Mold Jar 1/2 L, Set of 6 |
|---|---|---|
| Seal & Leakproofing | 9.0Passed ATK's shake test, including after 100 open-close cycles, and The Gadgeteer's 30-minute upside-down test. | 6.5The clamped rubber ring can seal well, but there's no storage leak test and TechGearLab called it finicky. |
| Health & Materials | 8.5Borosilicate bowls with glass and silicone lids; plastic- and PFAS-free per the manufacturer, with no third-party material test. | 7.5Glass, rubber and steel; the glass type is unstated and Weck recommends plastic covers for freezing. |
| Durability & Heat Safety | 7.5Borosilicate glass and a 2-year warranty; the packaging says not to put the lids in the oven. | 7.0Thickest glass and first for longevity at TechGearLab, but the lids can break and there's no oven rating. |
| Stain & Odor Resistance | 7.5Slight tuna odor on the lids at ATK; no odors at The Gadgeteer. | 7.0Glass doesn't stain; the rubber rings may hold odors but can be replaced. |
| Ease of Use | 7.0The steam valve makes microwaving easy and every part is dishwasher-safe, but the set is heavy and the lids suction down. | 5.5Clamps and loose rings are fiddly and there's only one size. |
| Value | 7.0About $10 per container with a 2-year warranty. | 8.0About $6 per jar, or about $4 at TechGearLab's $24 list price. |
Specifications
| Spec | Bentgo Signature Leak-Proof Glass Food Storage 12-Piece Set | Weck 742 Mold Jar 1/2 L, Set of 6 |
|---|---|---|
| Lid material | Tempered glass panel with silicone frame and silicone steam valve | Glass |
| Plastic-free lid (no plastic in lid/seal) | Yes | Yes |
| Container glass type | Borosilicate | — |
| Seal / gasket material | Silicone (attached gasket) | Rubber ring with metal clamps |
| Manufacturer states PFAS-free | Yes | No |
| Number of containers | 6 containers | 6 containers |
| Container capacity range | — | 19.6 fl oz each |
| Lid oven-safe | No | — |
| Lid microwave-safe | Yes | Yes |
| Lid dishwasher-safe | Yes | Yes |
| Warranty | 2 years | — |
Bentgo Signature Leak-Proof Glass Food Storage 12-Piece Set
Pros
- Leakproof in two independent tests
- Glass lids with attached silicone gaskets
- Borosilicate bowls
- Microwave- and dishwasher-safe lids
- 2-year warranty
Cons
- Heavy
- Lids suction down as hot food cools; open the valve first
- America's Test Kitchen found a slight tuna odor on the lids
- Lids should not go in the oven
The best all-round choice for meal prep and lunches. Plastic-free and PFAS-free status are Bentgo's own claims, but the leak performance is independently backed, which is rare in this category.
Full Bentgo Signature Leak-Proof Glass Food Storage 12-Piece Set review →Weck 742 Mold Jar 1/2 L, Set of 6
Pros
- Thick glass, ranked first for longevity
- No plastic in the closure
- Replaceable rings and clamps
- Low cost per jar
- Good for soups, yogurt and grains
Cons
- Clips are easy to lose
- Glass lids can break
- Replacement parts harder to find
- Freezing is recommended only with Weck's plastic covers
- Weck doesn't state the glass type
A cheap, durable choice for fridge staples at home. Treat it as a jar, not a lunch box.
Full Weck 742 Mold Jar 1/2 L, Set of 6 review →Both products are part of our guide The Best Glass (Plastic-Free) Food Storage Containers of 2026, where you can see every pick, how we score and current prices from each retailer.