This method describes how to evaluate the influence of roll-on aluminum and screw cap closures on the aroma of a beverage. The closure should have no influence on the aroma or the flavor of products packaged in the bottles.
Production facilities in the beverage industry which fill beverages in containers with roll-on or screw cap closures
The closure should have no sensorial impact on the aroma or the flavor of products packaged in the bottles.
This is applicable for the following: aluminum roll-on closures without safety features used for sealing returnable and disposable glass bottles with threaded openings as defined in DIN 6094-12:1995-10 (7.5 R) or DIN 6094-14:1995-02 (8 G), the contents of which are capable of building pressure; plastic screw cap closures (with or without a safety ring) for sealing returnable and disposable bottles made of glass or plastic, the contents of which are capable of building pressure.
Bottles are filled with mineral water and sealed with aluminum roll-on caps or plastic screw cap closures and tested. The samples are subjected to treatment in a light cabinet. Subsequently, the treated samples are tasted and compared to a reference sample.