Let's analyze
1) The difference between physical and chemical processes during distillation in a vacuum.
2) How these vacuum features affect the production of light table drinks.
3) How these vacuum features affect the production of heavy tasting drinks.
We come to the conclusion that
The use of vacuum gives a definite improvement for light drinks.
For heavy drinks on a vacuum, there are advantages and disadvantages.

See the topic:
Vacuum cube from kegs. Heating with a food warmer    • Куб для вакуума из кеги. Нагрев мармитом  
Vacuum moonshine, homemade    • Вакуумный самогонный аппарат, самоделка