S'well 12820-B19-42810EU Onyx Eats 2-in-1 Food Bowl, Stainless Steel, 636 ml, Black
Product description
Some food containers are bought mainly for straightforward storage, others need to cover preparation and eating as well. The S'well Onyx Eats 2-in-1 is designed for the latter, combining a stainless steel outer bowl with a separate Tritan prep bowl.
Its 636 ml capacity suits a packed lunch, salad or leftovers. The black finish and rectangular shape give it a defined, compact footprint, with listed dimensions of 12 x 12 x 12.1 cm.
The practical distinction is between the two parts: the insulated outer shell is intended to keep food hot or cold for longer, while the inner bowl can be used for preparation and is specified as microwave- and freezer-friendly.
Strengths
The two-part design makes this more versatile than a basic storage tub. Food can be prepared in the inner bowl, then nested into the stainless steel outer shell for carrying and eating. That arrangement may suit overnight oats, a salad or leftovers brought to work, without requiring a separate serving bowl.
The outer shell uses vacuum insulation, and the product is described as helping food stay colder or hotter for longer. There is no stated duration, so treat this as temperature-retaining design rather than a guarantee that a meal will stay at a particular temperature for a set time. The reusable, BPA/BPS-free construction is another consideration for people looking to replace disposable food packaging.
Key takeaways
This is a food bowl with a separate preparation insert, not simply a single-compartment container. The 636 ml capacity offers room for a meal portion, while the inner bowl adds flexibility for prep and reheating. For example, oats can be portioned into the insert ahead of time, or leftovers can be carried in the outer bowl and reheated in the inner one.
The stainless steel shell and the Tritan insert serve different purposes, so the microwave-friendly claim applies to the inner bowl, not the entire two-part set. If you only need basic storage, that extra component may be unnecessary, if you want preparation and carrying in one format, it has a clearer role.
How to look after it
The product information lists dishwasher-safe material, while the manufacturer’s care notes also recommend hand washing and mention top-rack dishwasher use. Hand washing is the cautious choice if you want to follow the more conservative guidance. The inner prep bowl is suitable for the freezer as well as the microwave, those uses are specified for that component, rather than for the stainless steel outer shell.
What to clarify
Can the whole bowl go in the microwave? The inner Tritan prep bowl is specified as microwave-friendly. The product information does not say that the stainless steel outer shell is suitable for microwave use.
Can it be used in the freezer? The inner preparation bowl is listed as freezer-friendly. No freezer-use guidance is given for the complete assembled bowl.
What is the capacity? The product details state 636 ml. The listed dimensions are 12 x 12 x 12.1 cm, which may also help when planning space in a bag or cupboard.
Buying verdict
It’s a good fit if you want one reusable format for preparing, carrying and eating a meal, and value having an insulated stainless steel outer bowl alongside a microwave-friendly insert. It’s not for you if you need the entire container to be microwave-ready, or if a single, uncomplicated storage bowl is all you need. The main buying decision is whether the two-part setup adds useful flexibility to your routine.