Compare Food Storage Containers
Which scores higher on safety? R3 breaks it down.
The most important dimensions, side by side.
Tempered soda-lime glass is chemically inert and FDA-approved — no chemicals leach into your food. Slightly more susceptible to thermal shock than borosilicate but perfectly safe for daily use.
Tempered soda-lime glass is chemically inert and FDA-approved for food contact. It will not leach chemicals into your food at any storage temperature. Avoid extreme temperature swings like freezer-to-hot-oven to prevent thermal shock cracking.
Food-grade polypropylene lids are FDA-approved and BPA-free by nature — a solid choice, though not as inert as silicone or glass lid materials.
Rubbermaid calls the lid material 'StainShield' but does not disclose the specific plastic type. While it is marketed as BPA-free, the lack of transparency on lid composition is a concern since the lid directly contacts your food.
Confirmed BPA-free across both the glass containers and polypropylene lids.
Both the glass containers and StainShield lids are confirmed BPA-free by Rubbermaid.
Glasslock has not published PFAS-free testing for the lid silicone gaskets — a transparency gap but not unusual in 2026.
Rubbermaid has not published any PFAS-free testing for the Brilliance Glass lid seal. This is common across most food storage brands in this category.
Oven-safe to 450°F via TEMPERMAX tempering technology — full versatility from fridge to oven.
Oven-safe to 450°F without the lid — suitable for reheating, baking, and light roasting directly from the refrigerator.
The 4-tab locking clip system with integrated silicone gasket is the most leak-resistant design tested by expert reviewers — ideal for transporting soups and liquids.
The snap-seal lids provide airtight, leak-proof closure that handles soups and sauces reliably. A solid choice for packed lunches and meal prep transport.
Both glass containers and polypropylene lids are fully dishwasher safe — no hand-wash components.
Glass containers and lids are both dishwasher safe. Place lids on the top rack for best longevity.
The 4-tab locking design is very secure but requires snapping all four sides with two hands — slower than press-fit or one-handed snap designs.
The lids snap shut with latches on two sides, requiring both hands to fully seal. Slightly less convenient for quick fridge grabs, but the payoff is a reliably airtight closure.
Containers stack with lids on and nest with lids off — though the mixed shapes (round, square, rectangle) are less space-efficient than uniform sets.
Rectangular containers with flat lids stack neatly in the fridge and cabinet, making efficient use of shelf space.
Everything you need to make the call - who each one is for, and who should skip it.
Go for it if you...
You want glass containers with genuinely leakproof lids for transporting lunches and soups
You need an affordable 9-container glass set under $40 for meal prep
You regularly move containers from fridge to oven — these handle 450°F
You prefer everything to go in the dishwasher without exception
You want glass containers with leak-proof lids that can go from freezer to oven to dishwasher
You already trust the Rubbermaid Brilliance brand and want the glass upgrade from the plastic version
You pack lunches or transport food and need reliable snap-seal leak protection
You want oven-safe containers rated to 450 degrees F for reheating and light baking
The main thing to know
The polypropylene lids are the weakest link — Glasslock has not disclosed PFAS-free status for the lid gasket material, and the specific plastic formulation beyond "BPA-free" is not detailed.
The lid material is Rubbermaid's proprietary 'StainShield' plastic with no disclosed resin type. While it is BPA-free, the lack of material transparency is why this glass container scores lower than you might expect.
Skip this if you...
You want to eliminate all plastic from your food storage — the PP lids are direct food-contact surfaces
You need one-handed lid operation — the 4-tab locking system requires two hands
You specifically need PFAS-free verification on lid gaskets
You want full material transparency on every food-contact surface including the lid
You prefer borosilicate glass for better thermal shock resistance when moving between extreme temperatures
You want the most affordable glass storage option and are fine with press-fit lids
Neither of these quite what you're looking for?
I've reviewed all Food Storage Containers options at every price pointEvery Food Storage Containers in our database is scored using R3's deterministic scoring system - the same inputs always produce the same score. For this comparison, we evaluated Glasslock and Rubbermaid across 3 independent criteria: Safety (94%), Efficacy (6%), Usability (1%). No sponsored rankings. No paid placements.
Straight answers - no sponsored content, no filler.
Both scored close to 5.9/10, so the better choice depends on your priorities. Safety is our top-weighted scoring pillar, followed by efficacy, and usability. Check which pillar matters most to your family and compare those specific scores.
R3 uses a deterministic scoring system - the same inputs always produce the same score. We evaluate each Food Storage Containers across Safety, Efficacy, Usability using independently verified data. No sponsored rankings. No paid placements. Every score is fully reproducible.
Not necessarily. The overall score reflects our weighted rubric, but your priorities may differ. If you care most about safety, compare the safety scores directly. If budget drives your decision, the prices tell a clearer story. The "right" pick is the one that matches what matters most to your family.
Not the right match? Explore these alternatives in the same category.
Caraway
Caraway 14-Piece Glass Food Storage Container Set
9.4
Weck
Weck 743 Mold Jar Transparent Glass Food Storage Containers with Airtight Lids (3/4 Liter Tall Jars, Set of 4)
9.7
Snapware
Snapware Total Solution 6-Cup Rectangle Glass Food Storage Container
6.9
Stasher
Stasher Platinum Silicone Reusable Storage Bag (Sandwich, Clear)
7.7
