When my dad got the rice sock that I made him, he made a very interesting remark. He said that there is a danger of the rice sock getting wet and exploding. Although I laughed at the ridiculousness of the statement, I just had to try it for myself and see. . .
Basically it just doesn't explode. The closest thing to blowing up was the fact that it held an air pocket, similar to swim trunks in a swimming pool, when it went into the water.
|Trial 1: dry sock|
|Trial 1: rice sock in warm water|
|Trial 1 Result: Wet rice sock, no damage|
|Trial 2: second soak in warm water|
|Trial 2: longer exposure to water|
|Trial 2 Result: Wet rice sock no damage|