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U-Konserve Round Container with Silicone Lid

U-Konserve Round Container with Silicone Lid

Recommended

A 304 stainless container sealed by a platinum-grade silicone lid - leak-resistant with zero plastic; the only non-steel part is the silicone lid.

The verdict: Silicone only

The container is 304 (18/8) stainless steel, and the leak-resistant lid is platinum-grade silicone - the only non-steel part, and the reason it's silicone-only rather than fully plastic-free. Unlike gasketed steel boxes (where a plastic frame holds a silicone ring), the whole lid here is a single piece of silicone that stretches over the steel rim, so there's no plastic anywhere. This is the practical pick when you need a seal for wet foods and still want to avoid plastic - the flexible lid is easy for kids' hands.

Verification: Manufacturer confirmed · Last reviewed July 2026

What it's made of

PartMaterialFood contact
container body
304 (18/8) stainless steel; no liner or coating
Stainless Steel
304 / 18-8
Yes primary
lid
one-piece platinum-grade food-grade silicone stretch lid; no plastic frame, provides the leak-resistant seal
Silicone Yes primary

A round nesting food container with a silicone lid that stretches over the rim for a leak-resistant seal. Sold in nesting sizes (roughly 5/9/16oz) that pack down, plus square to-go and bento formats. The flexible lid is easy for small hands, which is why U-Konserve markets these for kids' lunches (the brand was formerly "Kids Konserve").

Pros

  • Silicone lid gives a real leak-resistant seal for wet foods
  • Flexible lid is easy for kids to open and close
  • Nesting sizes; dishwasher, freezer, and oven-safe (lid off)

Cons

  • Silicone lids can loosen with wear and eventually need replacing
  • Steel body can't go in the microwave
  • Round shape is less space-efficient than a bento tray

Common questions

Does the U-Konserve Round Container with Silicone Lid have plastic in it?

No petroleum plastic touches your food. On the U-Konserve Round Container with Silicone Lid, the lid is silicone, and the rest of the food path is stainless steel.

What is the U-Konserve Round Container with Silicone Lid made of?

Part by part, the U-Konserve Round Container with Silicone Lid is: container body — stainless steel; lid — silicone.

Does the U-Konserve Round Container with Silicone Lid have silicone in it?

Yes — the lid is silicone on the U-Konserve Round Container with Silicone Lid. That is a primary contact surface, not just a seal — your food is in direct contact with it.

Is the U-Konserve Round Container with Silicone Lid BPA-free?

No plastic touches your food on the U-Konserve Round Container with Silicone Lid — the food path is stainless steel and silicone — so BPA, which comes from polycarbonate and epoxy plastics, is not in play here.

Where is the U-Konserve Round Container with Silicone Lid made?

The U-Konserve Round Container with Silicone Lid is made in China.

Categories: Lunch Boxes · Food Storage Containers

Sources

Every material claim above is backed by these. This is the scattered info we centralized.

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