Can i use poly pellets in a hot pack?

Poly pellets are not recommended for use in hot packs, as they are typically made from plastic and can melt or release harmful chemicals when heated. Instead, it's better to use materials specifically designed for hot packs, such as rice, beans, or dedicated heat pack fillers. These materials can safely retain heat and provide the therapeutic benefits you're seeking. Always check the manufacturer's guidelines for any specific product you intend to use.