Apparatus for thermal conditioning a product

A reaction vessel to facilitate the mixing and reaction of a first component and a second component, where said reaction vessel is in thermal contact with a product, where the product substantially surrounds said reaction vessel, and where said reaction vessel comprises:

• a first compartment to contain the first component;
• a second compartment to contain the second component, where said second compartment includes a flexible wall portion and a cylindrical wall having an axis of rotation;
• a membrane perpendicular to said axis and positioned between said first compartment and said second compartment, where said membrane, when intact, prevents fluid communication between said first compartment and said second compartment, and where said membrane, when pierced, allows fluid communication between said first compartment and said second compartment;
• and
• an actuator not affixed to said first compartment, said second compartment, or said membrane, where said actuator includes a base adjacent to said flexible wall portion, piercing elements that extend from said base in a direction towards said membrane, and a guide member that extends from said base in a direction towards said membrane forming an outer curved surface adjacent to said cylindrical wall and with the same curvature as said cylindrical wall,
• where when said flexible wall portion is flexed, said flexible wall portion contacts said base and forces each of said piercing elements to move in a direction perpendicular to said membrane.