Finish the following sentence with the best choice: When making a homemade hand warmer what is a good material to put in the pouch?

Choices:
- Uncooked rice in the pouch will warm up after 30 secs in the microwave and stay warm for 30 mins.
- Uncooked flour in the pouch will warm up after 30 secs in the microwave and stay warm for 30 mins.

Answer:
Uncooked rice in the pouch will warm up after 30 secs in the microwave and stay warm for 30 mins.