Dry Hopping and Its Effect on Beer Bitterness, the IBU Test, and pH
Impact analysis | Dry hopping is very popular among craft brewers, however, few realize that it can significantly alter the hop acid composition of beer which can affect a beer’s bitterness and interfere with the IBU Test. It can also increase a beer’s pH. Dry hopping experiments were conducted and a number of analytical tests were performed on beers before and after dry hopping to better understand the impact it can have on bitterness, the IBU, and pH. In a separate follow-up paper dry hopping experiments were performed to evaluate its effect on beer foam stability.
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