These Zojirushi Bento Stainless Steel Lined Jars are an interesting take on the traditional Japanese Bento Boxes that people take for lunch. Basically, they are lunchboxes. I took many a bento box to work in my college days - saved a ton on buying lunch. What’s cool about these lunch jars is that they all fit together in a vacuum insulated container that sort of looks like a big thermos. You can store either hot or cold food (but not both).

There are four food bowls that stack inside the stainless steel container. I actually had to look at one of the pictures on Amazon to figure out how they accomplish storing the food together. Basically, two of the bowls are meant for room temperature foods and stack on the top. Then there is an insulating lid under that. It’s followed by the larger bowl for your hot main dish, and underneath that you can put a jar that contains soup.