U-Konserve Round Container with Silicone Lid
Silicone is a primary contact surface here — your food is in direct contact with it, not just a seal.
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
What it's made of
| Part | Material | Food 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
Categories: Lunch Boxes · Food Storage Containers
Sources
Every material claim above is backed by these. This is the scattered info we centralized.
- manufacturer https://ukonserve.com/products/round-stainless-steel-container-with-silicone-lid brand states container is 304 (18/8) stainless steel and lid is plastic-free platinum-grade silicone; free of BPA/BPS/phthalates/lead
- manufacturer https://www.amazon.com/Konserve-Container-Clear-Silicone-Medium/dp/B088VWM76W U-Konserve listing confirms stainless steel body with leak-proof silicone lid, dishwasher safe, plastic free
Spot a mistake or something out of date? Let us know — corrections are how this stays accurate.