Our stainless steel leak-proof insulated thermos with an all-stainless interior keeps food hot or cold for hours! Pack soup or chili in the morning and lunch will be steaming when you are ready to eat. Pack smoothies or yogurt and it stays cool until lunchtime. Take leftovers on the go so you can eat healthier and reduce food waste with our triple-walled food jars.
Similar to a thermos, they keep the temperature you start with, so pre-heat with very hot water for a few minutes before adding piping hot food, and pre-chill in the freezer for a few minutes (lid off) before adding cold food. U-Konserve insulated food jars keep pre-heated food hot up to 5 hours, and pre-chilled food cold at least 8 hours.
• TriMax® triple insulation
• Reflecta™ insulated lid for enhanced temperature retention
• Interior is plastic free
• Leak-proof and airtight
• Exterior stays room temperature and condensation-free
• 304 (18/8) stainless steel (not for use in microwave)
• Lid has silicone seal, and PP#5 inside plastic rim (that does not come in contact with food)
• Free of BPA, BPS and phthalates
• Hand wash
Sizing:
• 12oz, 5" x 3.5"
Why U Konserve?
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Reusable and waste-free
Our products are designed to reduce the staggering amount of trash that ends up in our landfills and oceans every year because of food packing. -
Sustainably designed
We use high-quality, non-toxic materials designed to be durable and long lasting, and to minimize waste throughout each product's life cycle. -
Non-toxic and non-leaching
We offer non-toxic, safe products that are tested by CPSIA-accredited independent labs to ensure that they are free of BPA, phthalates and lead. -
Functional and practical
We offer products for kids and adults, ideal for lunches, travel, picnics, takeout, salad bars and family leftovers. They're easy to clean, and easy to pack and store. -
Feel part of something big
One reusable solution can save thousands of single-use plastic bags and containers from landfills. Replacing disposables with long-lasting alternatives is a commitment to foster important change. Joining the movement empowers and connects everyday actions with meaningful results.
WHY REUSE?
- You'll reduce waste by eliminating disposable food packaging from our landfills and our oceans that threatens animals, our planet and ourselves. Read about the plastic pollution problem at 5 Gyres and Plastic Pollution Coalition.
- You'll eat healthier by packing homemade, non-packaged foods. Practice healthy portion control and eat balanced meals.
- You'll store safer by packing food in non-leaching, non-toxic containers.
- You'll save money by reducing unnecessary packaging and packaged foods. Our sustainably designed products are durable and long lasting, and with care will last many years.
- You'll inspire others by decreasing your impact on the environment.
About U Konserve /
Long before zero-waste living was making headlines, U-Konserve was creating products to help people live a zero-waste lifestyle. The company was founded by two friends who believed that small changes can have a huge impact on the global movement to protect our planet.
As a Certified B corporation and member of 1% for the planet, the company is using business for good by creating a positive impact for employees, communities and the environment.
Designed in Boulder, Colorado.





