Did you know that peppers come in colors like red, yellow, purple, orange – even brown? And each color has a different taste. Usually the darker the color, the sweeter the taste.

The amount of heat in a hot pepper depends on the variety, and is measured by the "Scolville Heat Unit" Scale. On this scale,peppers can range in heat between 500 to 400,000 heat units! And within each variety, the more mature the pepper, the hotter it will be.

That’s why a red Anaheim pepper will be hotter than a green Anaheim pepper. The hottest pepper is the Habareno Pepper, which is 100 times hotter than a Jalapeno and 10 times hotter than a Tabasco pepper.

http://www.lifeplusvitamins.com/chili-peppers-vegetables-nutrition.htm