
Research needed to build: Wine Press(Economy)
Purpose: Allows one to serve wine.
Build in more then one town: Yes, will want them to increase happiness in each of your town/colonies
Soft Cap: lvl 16 Can build higher but after 16 the cost is greatly increased.
General Information regarding the Tavern
Lets take a look around the window from the Tavern's view(once you click on your on the Tavern)
On the left side of the screen you will see

Here you can see how much materials will be needed to upgrade and how long it will take. Also you have the option to demolish the building as well. Clicking demolish will give you a confirmation screen showing how much resource you would recover. This option is helpful for when you want to abandon a colony and recover some of the luxury resources and wood.
Now in the main portion of the screen you will see:

This is where you can decide how much or how little wine you serve. Each one level of increase to wine served gives +80 to overall happiness.
CAUTION: Clicking

An example would be if you decided to serve 57 wine per hour. Clicking
