Which measure is used to express the bitterness of beer?

Which measure is used to express the bitterness of beer?

• A. IBUs
• B. ABV
• C. OG
• D. SRM

Answer: (A)

Bitterness in beer is quantified with International Bitterness Units, or IBUs. This scale estimates the amount of bitter compounds—primarily iso-alpha acids formed from hops during the boil—that contribute to perceived bitterness. In general, higher IBUs correlate with a more bitter taste, though sweetness from malt and alcohol can soften that perception. ABV measures how much alcohol is present, not bitterness. Original gravity reflects the starting sugar content and potential alcohol, affecting body and fermentation but not bitterness. SRM indicates color, from pale to dark, and has no direct link to bitterness. So, IBU is the measure that directly relates to how bitter a beer will taste.

Bitterness in beer is quantified with International Bitterness Units, or IBUs. This scale estimates the amount of bitter compounds—primarily iso-alpha acids formed from hops during the boil—that contribute to perceived bitterness. In general, higher IBUs correlate with a more bitter taste, though sweetness from malt and alcohol can soften that perception. ABV measures how much alcohol is present, not bitterness. Original gravity reflects the starting sugar content and potential alcohol, affecting body and fermentation but not bitterness. SRM indicates color, from pale to dark, and has no direct link to bitterness. So, IBU is the measure that directly relates to how bitter a beer will taste.