Stasher Silicone Reusable Storage Bag, Sandwich, 28 oz, Clear
The Stasher sandwich bag is a reusable, food-grade silicone bag built to retire single-use plastic zip bags. It is the flexible, packable, freezer-and-sous-vide half of a low-tox storage kit — the everyday counterpart to a rigid glass container. Made from 100% platinum-grade silicone with a leakproof Pinch-Loc seal, it is free of BPA, BPS, lead, latex and phthalates, and is safe in the oven (to 425°F), microwave, dishwasher and freezer.
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What does the research say about the Stasher Silicone Reusable Storage Bag?
Every claim below is tied to a source you can open, quoted verbatim — how we research picks.
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“Bisphenol A can leach into food from the protective internal epoxy resin coatings of canned foods and from consumer products such as polycarbonate tableware, food storage containers, water bottles, and baby bottles.”
BPA can leach into food from plastic food storage containers, which is the case against plastic food contact.
NIEHS (NIH) — Bisphenol A (BPA) · 2024 ↗ -
“The degree to which BPA leaches from polycarbonate bottles into liquid may depend more on the temperature of the liquid or bottle, than the age of the container.”
Heat, not just age, drives how much BPA migrates — which is why hot-food storage in plastic is the concern.
NIEHS (NIH) — Bisphenol A (BPA) · 2024 ↗ -
“unreacted cyclic volatile methylsiloxanes (cVMS), used in the starting materials or resulting from side reactions during the polymerisation process, can still be present in the final product and potentially migrate into foodstuff”
Honest caveat: food-grade silicone is regulated and generally considered inert, but is not strictly zero-migration; unreacted siloxanes can be present.
PMC — Risk Assessment of Food Contact Materials II (EFSA) · 2022 ↗
Educational summary of the research — not medical or veterinary advice. Evidence strength varies and individual results differ; talk to a qualified professional before changing your (or your pet's) health routine.
How does the Stasher Silicone Reusable Storage Bag compare?
| Stasher silicone bag | Glasslock glass | Stainless steel container | |
|---|---|---|---|
| Replaces single-use plastic zip bags | Yes — its core purpose | No (rigid box) | No (rigid box) |
| Flexible / packs flat | Yes | No | No |
| Oven-safe | Yes, to 425°F | Yes (oven-safe glass) | No |
| Freezer & sous vide | Yes | Freezer yes; not sous vide | Freezer yes; not sous vide |
| Shatterproof if dropped | Yes | No (glass) | Yes |
Buy it if
- Anyone trying to eliminate single-use plastic zip bags from marinating, freezing and snacks
- Sous-vide cooks who want a reusable, heat-tolerant bag instead of disposable plastic
- Families packing lunches where glass is too heavy or breakable
- People building on the Glasslock set who need a flexible, packable option for the freezer and lunchbox
Skip it if
- Anyone who mainly needs to oven-reheat and stack meal prep — rigid glass does that better
- Buyers who want the maximum-evidence, most inert option for hot/acidic long-term storage (choose glass)
- Those unwilling to pay a premium per bag versus a box of disposables
Is the Stasher Silicone Reusable Storage Bag worth it?
A genuine, distinct second pick: the flexible, food-grade silicone bag that retires single-use plastic where rigid glass is impractical — freezer, lunchbox and sous vide. Buy it as the complement to the Glasslock glass, not a replacement. Choose platinum-grade silicone, keep glass for the hottest and fattiest long-contact jobs, and you have the low-tox storage bases covered.
Check price on Amazon Live price & reviews on AmazonQuestions, answered
- How is this different from the Glasslock glass containers — do I need both?
- They cover different jobs. Rigid glass is best for oven reheating, meal-prep on the shelf, and anything acidic or saucy that you want to see and stack. The Stasher bag is the flexible, packable half: it seals a marinade around meat, lies flat in a crowded freezer, goes into a sous-vide bath, and slips into a lunchbox where a glass box is bulky or breakable. Most low-tox kitchens use glass for storing and reheating and silicone bags to replace disposable plastic bags. Source NIEHS — BPA and food storage ↗
- Why swap plastic zip bags for silicone at all?
- Because plastic food-contact materials can transfer small amounts of their chemistry into food, and heat makes it worse. FDA notes that small, measurable amounts of packaging can migrate into food; NIEHS notes BPA can leach from plastic food storage items and that leaching tracks with temperature. A durable, reusable silicone bag removes single-use plastic from the marinating, freezing and microwaving steps where migration is most relevant. Source FDA — BPA in food contact ↗NIEHS — BPA ↗
- Is silicone actually safe, or is it just a different plastic?
- Silicone is a distinct material (a silicon-oxygen polymer, not a petroleum plastic) and food-grade silicone is generally regarded as stable and inert. Be honest, though: it is not strictly zero-migration. Regulatory reviews note that unreacted volatile siloxanes can remain in a product and migrate into food, especially with fatty foods and high heat, and that lower-quality silicone migrates more. The long-term human data base is thinner than for glass. The practical takeaways: buy platinum/food-grade silicone from a reputable maker, avoid cheap fillers, and lean on glass for the hottest, fattiest, longest-contact jobs. Source PMC/EFSA — Food Contact Materials risk assessment ↗
- What is it actually made of, and what's not in it?
- 100% platinum food-grade silicone with a leakproof Pinch-Loc seal. Per the manufacturer it is free of BPA, BPS, lead, latex and phthalates, and is rated oven-safe to 425°F and safe for microwave, dishwasher, freezer and sous vide. (Material and temperature claims are manufacturer specifications.) Source Stasher (manufacturer specs) ↗