Silicone Lunch Box with Cover – What Buyers Should Check Before Ordering
If you’re sourcing lunch boxes for your brand, you’ve probably seen this scenario:
A buyer places a trial order. The samples look fine. The price is good. But three months later, the complaints start coming in – lids that don’t seal properly, containers that smell after a few washes, or worse, food leaking in customers’ bags.
That’s why we tell buyers: look at the details before you commit to a supplier.
Here’s what matters when you’re evaluating a silicone lunch box with cover – and what we’ve learned from producing them for brands worldwide.
The leak-proof cover is where most suppliers cut corners
A silicone lunch box is only as good as its lid.
Some factories use a thin, flimsy cover that sits on top but doesn’t actually seal. It looks fine in photos. But once the box is tilted in a lunch bag, the contents leak out.
Our silicone lunch box with cover uses a secure lid design that creates a proper seal – no spills during transport. It’s safe for microwave, freezer, and dishwasher use. And the lid stays tight even after repeated washing.
One buyer from a European meal-prep brand told us: “We tested six suppliers. Three of them failed the leak test within the first week. Yours passed on the first try.”
That’s the kind of feedback that matters.
Food-grade silicone – not all suppliers deliver the same grade
Our silicone lunch box is made from 100% food-grade silicone, BPA-free and odorless. It resists stains and odors, so the container stays fresh batch after batch.
Here’s a detail most buyers don’t think about: the grade approved in samples is the grade we produce. Some factories switch to a cheaper compound after the trial order. We don’t.
Temperature range: -40°C to 230°C. That means you can reheat food in the microwave, store leftovers in the freezer, and clean it in the dishwasher – all in the same box.
Three sizes – one product line covers multiple SKUs
The silicone lunch box with cover comes in small, medium, and large sizes. For a brand or retailer, that’s one product line covering everything from light snacks to full lunches.

No need to source from three different suppliers. One order, three SKUs, one consistent quality standard.
What buyers ask us most
We get the same questions from brands and Amazon sellers:
- Can we customize the color? Yes – Pantone-matched.
- Can we add our logo? Yes – printed or embossed on the lid or body.
- What about packaging? Poly bags, retail boxes, hang tags, barcodes, private-label packaging – all available.
- What’s the lead time? 15–25 days for standard orders. Samples in 3–7 days.
- What certifications do you have? FDA and LFGB tested. Reports available per order.
One thing we tell every buyer
Order a sample first. Fill it with soup. Turn it upside down. Put it in your bag and shake it. If it doesn’t leak, you’ve found a supplier worth talking to.
We can get samples to you within 3–7 days.
Want to see the full product specs?
We’ve put together a detailed product page with technical specifications, customization options, and order requirements. You can view it here:
👉 silicone lunch box with cover – S/M/L sizes, leak-proof, BPA-free
That page also covers:
- MOQ and lead time
- Customization options (size, color, lid design, logo, packaging)
- Material and safety certifications
- What to specify when you order
About Zhangzhou Evermore New Material Technology Co., Ltd. (漳州永越新材料技术有限公司)
We are a silicone manufacturer in China with in-house mold development, injection molding and compression molding capabilities, and full FDA/LFGB certifications. We supply kitchenware, bakeware, pet product, and daily-use brands worldwide.
Contact us:
Website: https://www.evermoresilicone.com/
Alibaba: https://evermorecn.en.alibaba.com/
Email: info@evermorecn.com
WhatsApp/WeChat: 86-13599531567