---
product_id: 3884010
title: "U Konserve - Stainless Steel Food Jar, Keeps Foods and Liquids Hot or Cold for Hours, Double-Walled and Vacuum Insulated, Dishwasher Safe (12 Ounce, Ocean)"
brand: "kids konserve"
price: "€ 2.72"
currency: EUR
in_stock: false
reviews_count: 8
url: https://www.desertcart.ie/products/3884010-u-konserve-stainless-steel-food-jar-keeps-foods-and-liquids
store_origin: IE
region: Ireland
---

# Keeps food hot up to 5 hrs Eco-friendly reusable design Keeps food cold up to 8 hrs U Konserve - Stainless Steel Food Jar, Keeps Foods and Liquids Hot or Cold for Hours, Double-Walled and Vacuum Insulated, Dishwasher Safe (12 Ounce, Ocean)

**Brand:** kids konserve
**Price:** € 2.72
**Availability:** ❌ Out of Stock

## Summary

> ♻️ Keep it hot, keep it cool, keep it conscious.

## Quick Answers

- **What is this?** U Konserve - Stainless Steel Food Jar, Keeps Foods and Liquids Hot or Cold for Hours, Double-Walled and Vacuum Insulated, Dishwasher Safe (12 Ounce, Ocean) by kids konserve
- **How much does it cost?** € 2.72 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/3884010-u-konserve-stainless-steel-food-jar-keeps-foods-and-liquids)

## Best For

- kids konserve enthusiasts

## Why This Product

- Trusted kids konserve brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Family-Ready & Safe:** BPA, phthalate, and lead-free materials make it safe for every lunchbox, plus dishwasher safe for effortless cleaning.
- • **Pre-Heat/Chill Hack:** Maximize temperature retention by pre-heating or pre-chilling—because your food deserves the best start.
- • **Temperature Lockdown:** Double-walled vacuum insulation locks in heat or chill for hours, ensuring your meal is always just right.
- • **Planet-Friendly Choice:** Ditch single-use plastics and join the movement to protect oceans and landfills with every meal.
- • **Versatile Meal Companion:** Perfect for everything from piping hot soups to refreshing smoothies—your all-day food guardian.

## Overview

The U Konserve Stainless Steel Food Jar is a 12-ounce, double-walled, vacuum-insulated container designed to keep foods hot for up to 5 hours and cold for up to 8 hours. Made from BPA-free materials and dishwasher safe, it’s perfect for professional millennials seeking a sustainable, versatile, and reliable food storage solution that supports an eco-conscious lifestyle.

## Description

Bring hot chicken noodle soup or chilled serving of yogurt with this insulated food jar from U konserve. Designed to be , this reusable jar is made from a food grade stainless Steel with a leak-proof, colorful plastic lid and base to keep your food safely sealed and ready to-go. With a double walled and vacuum insulated design, this jar is capable of maintaining food temperatures for three to six hours while remaining cool to the touch and condensation free. For best results, You can preheat by filling with hot water or pre-chill by placing in the freezer for a few minutes Before use. Responsibly made with safe and nontoxic materials, this container is free of BPA, phthalate, PVC, and lead. It is a kitchen essential for convenient food storage and is even top rack dishwasher safe for a quick and easy clean up.

## Features

- Keeps food hot or cold for hours: Our food jars keep pre-heated food hot up to 5 hours, and Pre-Chilled food cold up to 8 hours (and often Longer depending on the starting temperature and outside temperature).
- Great for food from Soup to smoothies: our food jars keep 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, pasta salad or yogurt and it stays cool until lunchtime.
- Keeps temperature you started with: similar to a thermos, insulated food jars are designed to keep the temperature you start with, so we recommend pre-heating by pouring very hot water inside and letting sit for a few minutes Before adding.
- Functional & practical for the whole family: Our products for kids and adults, ideal for school lunches, work, travel, picnics, takeout, and family leftovers. All products are free of BPA, phthalates and lead. Dishwasher safe. Easy to pack and store.
- Doing our part to protect the planet: we believe that small changes have a huge impact. One reusable solution can save thousands of single-use plastic bags, containers, bottles, straws and utensils from our oceans and landfills.

## Product Details

- **Brand:** Kids Konserve
- **Color:** Ocean
- **Material:** Stainless Steel
- **Material Feature:** Non-Toxic, Reusable
- **Capacity:** 12 ounces

## Images

![U Konserve - Stainless Steel Food Jar, Keeps Foods and Liquids Hot or Cold for Hours, Double-Walled and Vacuum Insulated, Dishwasher Safe (12 Ounce, Ocean) - Image 1](https://m.media-amazon.com/images/I/7135f2WGGKL.jpg)
![U Konserve - Stainless Steel Food Jar, Keeps Foods and Liquids Hot or Cold for Hours, Double-Walled and Vacuum Insulated, Dishwasher Safe (12 Ounce, Ocean) - Image 2](https://m.media-amazon.com/images/I/21mR26u4g5L.jpg)

## Questions & Answers

**Q: Where is made in? From usa or china ?**
A: China...but it has a stainless steel liner, no plastic.

**Q: Hi all - Can you lease tell me if it is also SS under the cap -- can plastic make ocntact with the food? Thanks!**
A: I am 99% sure that the cap is fully plastic. I will double check when I get home, but I don't believe the cap is stainless steel.

**Q: In what country is this made?**
A: I wouldn't buy them, for the fact that once closed kids and teacher can hardly get them opened. Twice my 7 year old came back from school without having her lunch!

**Q: Is the bottom of the lid that comes into contact with food made of plastic or metal?**
A: Plastic

## Customer Reviews

### ⭐⭐⭐⭐⭐ Keeps food hot for hours.
*by L***. on June 24, 2025*

I use this daily for hot cereal. I make my breakfast, add hot water and throw it in my lunchbox. It stays hot from around 7:00am until 9:30is when I eat my breakfast. It’s easy to use and cleans great in the dishwasher. I still can’t get the sticky label residue off the outside despite the fact that I’ve used it every day for months. I would suggest the company doesn’t add that sticker. I’m not going to reduce my review for it because the functionality of it is above and beyond what I was expecting.

### ⭐⭐⭐⭐ Nice thermos for lunch.
*by B***P on January 15, 2024*

It's a nice size to carry for lunch. I did prepare it as recommended, but the food close to plastic top was not kept hot. It did get warmer as I ate down. Ion

### ⭐ Poor Performance and Construction
*by J***E on April 7, 2024*

These were on a sale with a deep discount, but still not worth the price.I have a few of the larger all stainless Insulated Food Jars and really like them. They are the best I've tried and keep food hot/warm for hours if used properly.However, this smaller version was a big disappointment. It did not perform as well as the larger jar. The soup was cold in a couple hours even though I preheated the jar with hot water and kept the Jar wrapped in a kitchen towel in a soft cooler for additional insulation.Also, water infiltrated the bottom plastic part after a few washings. I did not have it submerged in water, just sitting in sink with water pouring in to rinse after washing. The bottom plastic came off with just a little work revealing a wet bottom (as seen in pic), perfect place for mold to grow.I was also bummed that the entire cap is plastic. This is not shown in the product pictures, and I assumed that the cap would have stainless on the inside like the larger version so that plastic didn't come in contact with hot foods.The biggest problem for me now is, I bought a few of them to give as gifts, but after using it myself I would not give them away to friends and family. So now I'm stuck with 5 of them that I'll never use.

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-11*