Zojirushi
18 oz. Stainless Steel Food Jar SW-KA52
Best insulated container for commuters needing hot or cold meals anywhere.
Enjoy your favorite meals at the perfect temperature for hours with the Zojirushi Stainless Steel Food Jar. This 18 oz. container utilizes Zojirushi's advanced vacuum insulation and a special Therma Chamber lid to ensure exceptional heat and cold retention. Constructed from durable 18/8 stainless steel, it features a leak-proof, one-piece stopper for a secure seal. The wide mouth opening makes it easy to fill, eat from, and clean, while the lid is designed to safely release pressure from hot foods. All food-contact surfaces are made from BPA-free plastic.
$39.99
Owner Satisfaction
4.8
/ 5
Category Rank
3
/ 987
#3 in Thermoses
Price vs Category Average
-25%
Below average
Model No.
52
/ SW-KA
Who it's for
- Commuters needing hot meals throughout the workday
- Busy cooks preparing chunky soups or hearty stews
- Health-conscious users prioritizing food safety and longevity
Who should skip it
- Budget-focused shoppers seeking an affordable lunch solution
- Hungry adults requiring large, calorie-dense main meals
- Users preferring low-maintenance, easy-to-clean kitchen gear
Performance breakdown
Thermal Retention
Industry-leading vacuum insulation keeps meals steaming hot for hours.
Build Durability
Rugged 18/8 stainless steel construction withstands daily wear and tear.
Leak Resistance
The one-piece stopper design provides a completely reliable, spill-proof seal.
Ease of Cleaning
Wide mouth opening allows for effortless access and thorough scrubbing.
Portability
Compact footprint and integrated finger loop make commuting simple.
User Safety
Pressure-relieving lid technology prevents accidents when opening hot contents.
Key Specs
Model No.
SW-KA52
Capacity
18 oz. / 0.52 liter
Dimensions (W x D x H)
3‐7/8 x 3‐7/8 x 5‐3/4 inches
Weight
0.13 lbs
Heat Retention After 6 Hours
153°F
Cold Retention After 6 Hours
48°F
Material
18/8 stainless steel and BPA-free plastic
Insulation Type
Vacuum Insulated
Features
- Keeps food hot or cold for hours
- Enhanced heat retention lid technology
- Durable and hygienic stainless steel build
- Secure, leak-proof stopper design
- Wide mouth for easy access and cleaning
- Safe pressure-relieving lid
- BPA-free for safe food contact
- Compact and portable for on-the-go
What customers say
Customers overwhelmingly praise the Zojirushi food jar for its exceptional thermal retention, keeping meals piping hot for many hours, which is a major satisfaction driver. The robust stainless steel build quality is frequently noted, suggesting durability for daily use. Users also appreciate the wide mouth design, which simplifies both filling and cleaning, especially with chunkier foods. While the initial cost is higher than alternatives, the consensus is that the superior, reliable performance and longevity provide excellent long-term value. This container is viewed as an indispensable tool for maintaining perfect meal temperatures.
Know before you buy
The Zojirushi SW-KA52 is designed to keep food at an ideal temperature for several hours. After six hours, you can expect hot foods to remain at approximately 153°F and cold foods to stay around 48°F.
No, this model is not dishwasher safe. To maintain the integrity of the vacuum insulation and the finish, we recommend hand washing the jar with mild dish soap.
Yes, the lid is specifically engineered with a pressure-relieving design. This ensures that the container remains easy to open even after being filled with hot contents that might otherwise create a vacuum seal.
Absolutely. The interior is constructed from durable 18/8 stainless steel, and all components that come into contact with your food are made from BPA-free plastic.
The jar features a wide-mouth opening that is designed for easy access. It is wide enough to eat from comfortably with a standard spoon or fork and makes filling and cleaning the container very straightforward.
Yes, the jar features a secure, one-piece stopper designed to be completely leak-proof. You can confidently carry it in your work bag or backpack without worrying about spills.
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Ask Hayley anything about this product before you decide.
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$40