Onyx Airtight Metal Containers


(3 customer reviews)

These airtight, stainless steel containers by ONYX are perfect for lunches and leftovers. They are dishwasher safe and last forever, so you’ll never have to pull a melted plastic container out of the dishwasher again.

18/10 food grade stainless steel

  • 12cm container – 4.75″ diameter; 24 oz
  • 14cm container – 5.5″ diameter; 37 oz
  • 16cm container – 6.25″ diameter; 51 oz
  • 18cm container – 7″ diameter; 59 oz

SIZE TIP – The 16cm (6.25″) airtight container is our favorite size for work lunches. It fits a good sized salad or leftovers perfectly.

SKU: onyx-airt-vari Categories: , Brand:


Slow living philosophy meets modern day practicality in these airtight metal containers. They offer a sustainable, waste-free solution that has your family’s busy lifestyle and the environment in mind. Crafted from durable 18/10 food grade stainless steel, these metal food storage containers from Onyx are built to last. They contain no plastic and, unlike synthetic food storage options, they are designed to last indefinitely, and don’t carry the risk of shattering.

Much lighter than glass, these sleek and sensible stainless steel containers are also dishwasher safe and toxin-free for your peace of mind. Their secure, airtight design will preserve the freshness of your food, allowing you to keep your leftovers longer–reducing food waste.

3 reviews for Onyx Airtight Metal Containers

  1. Rachelle (verified owner)

    If you’ve been debating about getting the Airtight Metal Containers, do yourself a favor and purchase them – they are incredible! I use them to mix, fold, and then hold all of my leftovers in. They are truly a one-stop-shop!

    Best highlight:

    True to the ’airtight’ name. No smells permeate out and liquid doesn’t leak (note: carried balsamic glaze tossed salad in a backpack for over 2 miles and never had an issue)

  2. Laura

    Love. Buying another size.

  3. mywildmuse

    i bought the smallest one during one of Helens Sample sale and im in LOVE! hoping to buy more soon

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