The Rommelsbacher mill is NOT for liquids!!!!!!!!!!!!!!!!!
The appliance will break if you pour water in the top!!!
The grind is never enough to make almond milk.
To make almond milk you would need something like a Vitamix or Thermomix.
Since I owned a Vitamix, I know what I'm talking about. Even almond milk made with a Vitamix is far from perfect. You would have to mash the almonds to a pulp and then soak them. You can't get the kind of almond milk you can buy in the shop with just a beater-grinder.

The Rommelsbacher is a perfect grinder. It turns faster than any blender. Even dried tomatoes and tomato skin become the finest powder. Since the cups are closed at the bottom, an extra fine almond milk should result. Maybe grind the almonds first and then add the liquid. The machine is only designed for short-time operation. It also switches itself off if it overheats, but then starts again when it has cooled down. For the price, a more than perfect effort. Highly recommended.