DUOSEAL™ Core, available with a choice of a board or foam core construction, allows for the option to eliminate heavy, costly, and complex threads on the rigid components (closure and container) as well as the elimination of an expensive and time consuming rotary capping process to engage threads. Potential applications include beverage (orange juice and dairy) as well as condiment (ketchup, mustard, etc.) packaging. DUOSEAL™ Core prevents the removal of the closure and subsequent refilling of containers, a problem faced by branded condiments in the food service industry.