Some foods can be dangerous to dogs. Just because you eat it and may like it does not mean it is safe for your pooch.
In generally, it is best not to give your dog the following: Alcoholic Beverages
Apples, Apricots, Cherries, Peaches and Plums
Baking Powder and Baking Soda
Coffee (grounds and beans)
Grapes and Raisins
Moldy or Spoiled Food
For more information on why these items are toxic, please read Dangerous Foods for Dogs.