This product is insulated and here are some tips to maintain heat for as long as possible:

• Make sure that the seal is correctly placed inside
• Pre-warm the flask with hot water and then empty it.
• Ensure that the contents are boiling or at least very hot before putting in the flask
• Add contents up to the fill line to eliminate air pockets
• Avoid opening the flask until you are ready to eat

And to help keep cold foods cold, you can pre-chill by placing in the freezer a few minutes before adding contents.

• Material: Stainless Steel and Plastic (PP#5)
• Ethics: Sustainable
• Care Instructions: Hand Wash in Warm Soapy Water
• Size: 650 ml / 15 x 9.5 cm dia. (8.5 cm int. dia.)