Compare Food Storage Containers
Stasher Platinum Silicone Reusable Storage Bag (Sandwich, Clear) scores higher on safety - here's why.
The most important dimensions, side by side.
Borosilicate glass is the gold standard for food-contact safety — chemically inert, handles extreme temperature changes, and zero chemical migration into your food.
Platinum-cured silicone is FDA and LFGB certified for food contact — no chemicals leach into food at any normal temperature. The material doesn't fit the rubric's standard glass/plastic categories, which affects the score.
Food-grade polypropylene lids are FDA-approved and BPA-free by nature — one of the safest and most well-characterized plastics for food contact.
The seal is integral platinum silicone — the same clean material as the bag body. No separate plastic lid component.
Confirmed BPA-free for both the borosilicate glass container and polypropylene lid.
Inherently BPA-free — platinum silicone contains no bisphenol compounds by material nature.
No PFAS-free testing has been published for the lid seal — common across the entire category. The silicone gasket is not a PFAS risk by material nature.
Stasher has not published a formal PFAS-free claim, though platinum silicone contains no fluoropolymers by material composition.
Rated to 500°F — the highest oven temperature in this category. Handles freezer-to-oven transitions, roasting, and baking with ease.
Oven-safe to 425°F — versatile enough for most reheating and light cooking directly in the bag.
Four-sided locking clips with silicone seal create a fully leakproof, airtight closure — safe for soups, sauces, and liquid transport.
The patented Pinch-Loc seal provides positive snap engagement — leak-resistant for most uses, though Consumer Reports found silicone bag seals can leak under firm pressure.
Both glass container and lid are fully dishwasher safe.
The entire bag goes in the dishwasher as one piece — no disassembly, no separate lid to clean.
Four locking tabs require two hands to open and close — slightly frustrating for quick access but necessary for the leakproof seal.
The Pinch-Loc seal requires a deliberate two-finger pinch — easy once you learn the technique but not as intuitive as snapping a rigid lid.
Rectangular containers stack neatly when lidded — efficient for fridge and pantry organization.
Flexible silicone bags cannot stack rigidly like glass or plastic containers — they collapse when empty and don't hold shape when stored.
Everything you need to make the call - who each one is for, and who should skip it.
Go for it if you...
You want the safest material combination available — borosilicate glass with disclosed food-grade PP lids
You need leakproof containers for transporting soups, sauces, or meal prep
You want the highest oven temperature rating in this category at 500°F
You prefer large 8-cup containers for batch cooking and family meal prep
You want to eliminate single-use plastic bags and need a reusable silicone alternative
You care about having zero plastic contact with your food — platinum silicone is FDA and LFGB certified
You want a container that goes from freezer to oven to dishwasher in one piece
You value the lifetime warranty that covers the entire unibody bag
The main thing to know
At $15 per container, this is 5x more expensive per piece than the Pyrex Simply Store 12-pack. The premium is justified for families who prioritize material safety and transport, but budget-conscious buyers can get safe glass storage for much less.
This is a flexible silicone bag, not a rigid container — it cannot stack, is awkward to fill with liquids, and the Pinch-Loc seal takes practice to master. If you expect traditional container functionality, this is a different product category.
Skip this if you...
You are on a budget — at $15/piece, a full set of containers adds up quickly
You prefer one-handed convenience — the 4-tab locking mechanism requires two hands
You want a variety of container sizes — this set only includes 8-cup containers
You need rigid, stackable containers for organized meal prep
You want to store liquids — the flexible walls and Pinch-Loc seal can be awkward to fill and may leak under pressure
You prefer traditional container shapes for refrigerator organization
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 Stasher across 3 independent criteria: Safety (94%), Efficacy (6%), Usability (1%). No sponsored rankings. No paid placements.
Straight answers - no sponsored content, no filler.
I'd start with Stasher Stasher Platinum Silicone Reusable Storage Bag (Sandwich, Clear) - it scored 7.7/10 overall in our scoring system. 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.
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