This is actually a place I have visited before, I had lunch in the bright and airy restaurant/café some years ago. The Half Moon brewery is a tourist destiantion in its own right. If you are in Bruges, this is a nice place to visit, good food and family friendly.
We did not meet the brewer here, but this is also a destination in its own right. While running a modern brewery, this is also a museum showing how the company has developed from its humble beginnings. The tour takes about an hour, be prepared for many steps up and down and some narrow passages, but also lots of breweriana and splendid views from the roof.
There is even a new beer worth trying, Straffe Hendrik Wild. A fruity beer with some brett adding another layer to an elegant beer. Apricots , almonds and funk. Limited edition – catch it while you can.
I imagine this is a place that gets very crowded in the summer. Try to get on the first tour in the morning.