Using a count() function and testing for zero:
bottle.count("alcohol") == 0
It is not only shorter (by one character) while producing a more general result, but also avoids boilerplate at the start of the function name which has to be typed before your editor can begin offering sensible choices.
You will say of course that counting all the alcohol molecules in a bottle to find out if it contains just one such molecule is rather a waste of time, but this means that you lack faith in your compiler to detect this optimization opportunity for you.
Conversely, if you possess a device that can individuate a single molecule of alcohol then it is time to give up programming and switch to extracting gold from seawater.