Flex the metal disk inside the heat pack until crystals begin to form. The heat pack will harden as the liquid inside solidifies.

Flex the metal disk inside the heat pack until crystals begin to form. The heat pack will harden as the liquid inside solidifies.

Flex the metal disk inside the heat pack until crystals begin to form. The heat pack will harden as the liquid inside solidifies.

Flex the metal disk inside the heat pack until crystals begin to form. The heat pack will harden as the liquid inside solidifies.

Flex the metal disk inside the heat pack until crystals begin to form. The heat pack will harden as the liquid inside solidifies.

Always place a plate or towel on bottom of pot to protect heat pack. Always use tongs to safely immerse and remove the heat pack from boiling water. Made from non-toxic material.