How long does my Nommie keep something warm/cold?Updated 2 months ago

Hot or cold meals up to 6 hours, ready to go. 
Before packing your food, preheat or precool the jar with water to get the best performance. Never place it in a microwave or oven — it's not built for that kind of heat.
Freezing the jar or using it to store ice may damage the inner liner and reduce its efficiency. Keep it at its best by sticking to food-friendly temperatures.