Gelatin capsules encapsulating an aroma material including at least one aroma compound may be applied to product packaging, such as food packaging, container (100) etc., with a secondary protective coating, e.g., at the interface of a container and its closure device. The gelatin capsules can be ruptured or broken when the container is opened, thereby releasing the aroma compound and causing a favorable aroma for the consumer. The secondary protective coating can reduce or prevent degradation of the gelatin capsules during product packaging, transport, and storage, thereby enhancing their performance.