Onyx stainless steel airtight round container 10cm 350ml

Onyx stainless steel containers are airtight and made from the highest quality, food grade 18/10 stainless steel.  Freezer safe, oven safe (without lid) and BPA free.

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Customer ratings and reviews

2 rating(s) - 2 review(s)
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Onyx stainless steel containers are airtight and made from the highest quality, food grade 18/10 stainless steel.

This versatile container is excellent for packing a healthy, waste free lunch or home food storage. It has a silicone seal in the lid to make it completely airtight for freshness. The whole container is freezer safe, and the bottom section is also oven safe (without lid).

you are making a difference:

  • Pack a waste and plastic free lunch with reusable lunchware instead of disposable alternatives.
  • Stainless steel is 100% recyclable at the end of it's useful life.
  • Buying responsibly made products that are made to last a lifetime


  • Highest quality food grade 18/10 stainless steel
  • Easy clip-lock lid with an inner silicone seal
  • Airtight 
  • Freezer safe
  • Oven safe (without lid).  Stainless steel is NOT microwave safe.
  • Record details on the stainless steel with a non-permanent marker that can be washed off
  • Dishwasher safe without lid, handwash recommended for lid


11cm W x 5.5cm H, 350ml capacity.  All measurements are approximate.

US company. Made responsibly in Korea

Browse our other Onyx stainless steel containers

  • Shop by your values Toxin free, Plastic free, Zero waste, Made to Last, PVC Free, Phthalate Free, BPA Free
By Sharon T. on 11 Aug. 2017 :

Title : Tough and functional
Comment : After purchasing a couple of the 18cm ones from Biome a couple of years ago - and being very impressed that they stil look like they are brand new after almost daily usage - I bought this one to carry around sauces, dressings or yoghurt to dip my fruit into. Like the large ones it is leakproof and tough.
(Onyx stainless steel airtight round container 10cm 350ml)

By Sophia F. on 15 Feb. 2016 :

Title : Great but too small for lunches
Comment : If you're trying to pack a role into a container, do not buy this. Opt for the 12cm or 14cm size. Great for packing nuts, small fruit servings etc. Works very well. Washes easily. Can stand all times I have dropped it. Increadibly durable and high quality product.

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