De Proefzaak (Werkspoorcafe) is a specialty beer café located on the Amsterdam-Rhine Canal in Utrecht. The café has taken over the location of the former tasting room of the now bankrupt Brouwerij De Leckere. Here,
De Proefzaak serves beers from their own Kleiburg Brewery as well as well-known Utrecht beers
| Day | Open | Close |
| Monday | closed | |
| Tuesday | closed | |
| Wednesday | 12:00 pm | 9:00 pm |
| Thursday | 12:00 pm | 11:00 pm |
| Friday | 12:00 pm | 11:00 pm |
| Saturday | 12:00 pm | 11:00 pm |
| Sunday | closed | |