1.   Chefs usually keep both white and black pepper in the kitchen, more for aesthetic reasons than taste differences.

2.   I can tell the taste difference between espresso and decaffeinated about as quickly as I can distinguish the difference between raw onions and cherry Jello.

3.   Macknin counters that only about half of his subjects guessed right about which substance they were taking, a sign that the taste difference could not have been huge.

4.   Of course, for the uninitiated it was difficult to detect a big taste difference.

5.   The taste difference would disappear if the milk were poured over cereal or into coffee.

6.   There must not be much taste difference among varieties.