Measure the drink in your bar by measuring the height from the bottom of the bottle in millimeters and entering it into the application. The application calculates the amount of drink in the bottle expressed in liters.
It is possible to search drinks by name, but it is even easier and faster to just scan the bar code for drinks with a mobile phone camera.
There are over 1300 different bottles in the database and they are increasing every day and new bottle shapes are being introduced.
Namely, each bottle has a different shape and thus the measured height gives a different actual amount of drink in the bottle.