Your should be tasting your staff on as much food and drink as possible.
Join me at http://www.50mistakes.com. I'm a restaurant owner and I have made a few mistakes in the last 10 years. I wish someone told me what I am about to share on my 50 Mistakes video series. These videos are short and top the point. I still run my restaurant, but I teach other restaurant owners: restaurant marketing, restaurant operations, more restaurant business tips & restaurant staff training.