The Oregon Garden Brewfest Definitions

These definitions will help you understand the different beers that are available at The Brewfest.

IBU - International Bittering Units

This is a measure of the actual bitterness of a beer as contributed by the alpha acid from hops. Because the apparent bitterness of a beer is subjective to the taste of the drinker and the balancing malt sweetness of the beer this is not always an accurate measure of the "hoppiness" of a beer. But, generally speaking, beers with IBUs of less than 20 have little to no apparent hops presence. Beers with IBUs from 20 to 45 are the most common and have mild to pronounced hops presence. Beers with IBUs greater than 45 are heavily hopped and can be quite bitter.

FG - Final gravity

Final Gravity is a measure of the unfermantable substances remaining in beer after fermentation. When FG is mathematically compared to OG, Original Gravity, the exact alcoholic strength can be determined.

OG - Original gravity

Original Gravity is a measure of the fermentable and unfermentable substances in the wort before fermentation. OG gives the brewer an idea of the potential alcoholic strength of the final product. After fermentation when OG is mathematically compared to Final Gravity, the exact alcoholic strength can be determined.