Present invention provides a compartment as bottled beverages cap for a formula of liquid or powder preparation which may be mixed-up easily with beverages inside of another bottle into a liquid composition. The user simply changes bottle beverage cap with a compartment according to present invention, expel the content into bottle with tear-off mechanism thus the content is mixed-up with water inside of bottle, and creates a ready-to-drink liquid composition. Further present invention provides a breaker having a stopper to against unintentional movements, specifically due to user's accidentally movement, such that said breaker does not tear beverages. This avoids seal becomes leaked which further may create caking of the content and reduced its quality.