This sampler will allow you to experience the scent of bread. You know the smell; you can't walk by a bakery without reacting to that smell wafting out the door as you walk by. What is it about the aroma of bread in the oven that is so irresistible? For many people, the odors evoke powerful, pleasant memories of childhood. But even people who grew up on plastic-wrapped, essentially aroma-free Wonder Bread break into contented smiles when they enter a bakery while the ovens are going. The reason has as much to do with chemistry as it does with psychology.