Frequently Asked Questions1. How long will it stay hot for? Up to 8 hours 2. How quickly does it get warm? The packet is air activated so once opened gets to max temp within just 20 minutes. 3. Can I use it more than once? No, it is a one-time only use product 4. What are they made from? Iron, water salt 100% natural ingredients which are non- toxic and odourless 5. Are they biodegradable? Yes, but please dispose of in a responsible manner |