When comparing ECOLunchbox 3-in-1 Steel Food Container vs Kosox Original Oxford Lunch Box, the Slant community recommends Kosox Original Oxford Lunch Box for most people. In the question“What are the best bento boxes for backpacks?” Kosox Original Oxford Lunch Box is ranked 3rd while ECOLunchbox 3-in-1 Steel Food Container is ranked 4th. The most important reason people chose Kosox Original Oxford Lunch Box is:
It will keep your food warm or cold for longer than a regular bag.
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Pros
Pro No food contamination
Since it's made of 100% food-grade stainless steel, you can be sure the food will not be contaminated with plastics, nor will the environment.
Pro Shock proof
If you drop them for a few meters, they don't get warped. Perfect for excursions to hilly trails, where you might just drop them accidentally.
Pro Super compact and well laid out containers
It is perfect for backpacking(as long as it doesn't hold any liquids).
Pro Light thermal insulation
It will keep your food warm or cold for longer than a regular bag.
Pro Easy to carry anywhere
It can be carried both using its handle or its adjustable shoulder strap.
Cons
Con It can rust
Even though it's made of stainless steel, some users on Amazon have noted that it can rust a little, so you need to keep it dry as much as possible.
Con The covers don't fit well
On most boxes, the measurements of the covers are off by millimeters, making it a less than ideal fit.
Con Not ideal for liquids
Since it doesn't have plastic seals, spills can be troublesome, so it's best used for solid foods.
Con It doesn't fully open
Zippers only open half way, so It might be hard to fit some things bigger than sandwiches.
Con Not the best build quality
On Amazon, there are several complaints about torn interiors after only a few months of use.