Oct 22, 2017 - 02:28 PM
While there are many mini-bar refrigerators that have locks, I too couldn't find a mini-bar system that included a lock on the door which you would think would be a common offering.
If you're unable to find one, you could easily install a lock on one but be sure you get one where the alcohol is stored behind cupboard doors (many are open-faced). offers many cabinet locking systems. If that's more work than you're interested in doing, a small padlock will do (although it won't look as nice).Home Depot
Pinterest offers some interesting ideas, but many of those are custom-built mini-bars.
Finally, you can invest in a custom built mini-bar where your instructions include a mini-bar design with a lock.
Sorry that I couldn't be more help. Maybe mini-bar manufacturers and retailers will see this and come up design systems that lock or add locking mechanisms to current units.