Not quite.

The 20% off is true . . . but it doesn't apply to beer. A 1 liter beer cost me $14.95, no discount. Not complaining - I love a good weiss and sauerbraten, but the discount only applies to the food.

I just came from there the other day, and am looking at my receipt now. Its still 20% off for food, but, don't "drink up" thinking otherwise. Good beer, like all of the best things in life, isn't cheap.