Zojirushi launched the SW-NA20 stainless steel soup jar in Japan on September 1, 2026, following its August 4 announcement. It is the company's first 200mL soup jar, intended for people who want a serving of miso soup or soup alongside a bento lunch.
The jar measures approximately 7cm wide and deep and 10.5cm tall, and weighs about 150g. Its compact size is designed for carrying soup together with a lunch box.
A 200mL capacity for soup alongside a bento
Zojirushi chose this capacity based on a serving of miso soup or commercially available instant soup of around 150 to 200mL. It suits meals where rice and side dishes are packed separately and a small serving of soup completes the lunch.
If you want a substantial soup with plenty of ingredients to provide enough food for lunch, consider whether 200mL will be enough. Counting both the ingredients and the liquid makes it easier to compare the capacity with your usual meal.
| Item | SW-NA20 specifications |
|---|---|
| Capacity | 200mL (0.2L) |
| Dimensions | Approx. 7cm wide × 7cm deep × 10.5cm tall |
| Weight | Approx. 150g |
| Opening diameter | Approx. 5cm |
| Colors | Lemon Yellow, Navy Blue, Fizzy Pink |
The opening is approximately 5cm across, making soup easier to pour in. To check the fit in your bag, pack your lunch box first and see whether there is space approximately 7cm wide and deep, with 10.5cm of height available.
At least 62°C after six hours, under specified test conditions
The jar has double-wall stainless steel vacuum insulation and Zojirushi's Thermo Ring structure, which reduces heat loss through the opening. The manufacturer's six-hour ratings are at least 62°C for heat retention and no more than 10°C for cold retention.
These figures are measured at a room temperature of 20°C ±2°C, with the jar filled to the level specified in the instructions and kept upright. The starting water temperatures are 95°C ±1°C for the heat test and 4°C ±1°C for the cold test. The ratings do not guarantee those temperatures regardless of how hot or cold your soup is when packed, how much you put in, or the conditions during transport.
Two parts to wash: the jar and stopper assembly
The seamless stopper combines the stopper and gasket into one unit. There is no gasket to remove for cleaning. Only the jar and stopper assembly need washing, and both are dishwasher safe.
The interior has Zojirushi's Rakuria Plus electropolished finish, designed for easier cleaning and resistance to rust caused by salt and other substances. The jar can be washed all over, but must not be left submerged in water.
Although the integrated design prevents forgetting to fit a separate gasket, liquid may still leak if the stopper assembly is not properly tightened. Check that it is securely closed before carrying the jar.
An option for carrying a small serving of soup every day
The SW-NA20 is worth considering if you want a small serving of soup with your bento and fewer separate parts to wash when you get home. Before buying, check whether your usual serving fits within 200mL and whether the jar fits in your bag alongside your lunch box.
