If you’re tired of lukewarm lunches or soupy messes in your bag, the Thermoflask Insulated Food Jar set might just be your new lunch companion. This 20-ounce food jar (set of 2) just showed up at Costco, and it’s ready to keep your meals at the right temperature all day long.
The Thermoflask features double-wall vacuum insulation that keeps hot foods hot for up to 7 hours and cold foods cold for up to 9 hours. With a 20-ounce capacity, it’s perfectly sized for hearty soups, stews, chili, pasta dishes, or even cold items like yogurt parfaits and fruit salad.
The build quality feels solid—this isn’t a flimsy lunch container. The wide mouth opening makes it easy to fill and eat directly from the jar, plus cleaning is actually manageable (no narrow necks to scrub around). The lid doubles as a bowl, which is a nice touch for eating on the go.
Key Features:
- Item #: 1759351
- Current Price: $22.99
- Double-wall vacuum insulation keeps food hot for 7 hours or cold for 9 hours
- 20-ounce capacity—ideal for full meals
- Two jars per set
- Wide mouth opening for easy filling, eating, and cleaning
- Lid functions as a serving bowl
- Stainless steel construction with leak-resistant seal
The Real Talk: At 20 ounces, this jar is pretty substantial, so it takes up decent space in your lunch bag. Also, while it’s leak-resistant, I wouldn’t recommend tossing it sideways in a bag with truly liquidy soups—no food jar is completely indestructible against Murphy’s Law.
Bottom Line: If you regularly pack hot or cold meals for work, school, or day trips, the Thermoflask delivers solid temperature retention at a reasonable warehouse club value. It’s a practical upgrade from disposable containers or subpar insulated jars that quit after a few hours.