How do you do the magic tea kettle trick where many types of drink comes out of a container without seen refilled often a Kettle is used?

I am not a magician but I researched this extensively on the web to try to figure it out. The answer was not easy to get. But having put various bits and pieces of information from different sources together, here is the best answer.

This trick is appears mind boggling when performed in front of a live audience. However, the entire trick is done with an exceptionally clever and intricate prop - the tea kettle itself. There is no magic whatsoever.

The tea kettle consists of small containers of liquid which the magician has pre-filled with various liquids such as coffee, orange juice, beer, etc. All the containers pour into a central funnel that leads to the spout of the kettle.

Each container has a tiny tube which lead to tiny holes on the underside of the handle of the tea kettle. The magician puts his fingers over these holes to keep the liquid from pouring out. The magician has memorized which holes lead to which liquid. When he takes his fingers off of any of the holes, the appropriate liquid comes pouring out of the spout.

To make mixed drinks, like a vodka gimlet for example, the magician would open up the holes for vodka and lime juice, while keeping all the other holes in the handle covered with his fingers.