When comparing ECOLunchbox 3-in-1 Steel Food Container vs BentoHeaven Leakproof Bento Box, the Slant community recommends BentoHeaven Leakproof Bento Box for most people. In the question“What are the best bento boxes for backpacks?” BentoHeaven Leakproof Bento Box is ranked 2nd while ECOLunchbox 3-in-1 Steel Food Container is ranked 4th. The most important reason people chose BentoHeaven Leakproof Bento Box is:
They are fitted with silicone sealed lids, making them one of the best-sealed bento boxes out there.
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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 100% leak proof
They are fitted with silicone sealed lids, making them one of the best-sealed bento boxes out there.
Pro Free extra recipe book
For your purchase, you get a free book: Effortless Bento: 300 Japanese Box Lunch Recipes.
Pro Easy to clean
Smooth inner surface, which is also dishwasher-safe.
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 The utensils are not hold into place
They tend to dance all around inside the box, making annoying rattling sounds.
Con Small, undivided inner compartments
There are no inner divisions in the compartments and they aren't big enough for regularly sized plastic containers.
Con The box strap may stretch with too much use
If that happens, the sealing will become ineffective.