Hi all,
I have a question about how to use "Estimate Boil Hop Util in Whirlpool" switch in the Equipment Profile. It is recommended to use it if steeping/whirlpooling.
If I understand the point of this switch, it makes an assumption that the hops added during the boil continue to contribute IBUs during the steep/whirlpool.
Here are examples of hop additions at 30 mins, 15 mins, 1 min, and 0 min, as well as a 15 minute steep at 180 degrees:
Switch On.
Switch Off.
Note that there is a small, extra IBU contribution from the 30 min addition with the switch on (+3 IBU). The effects are more pronounced at 15 mins (+6), and are considerably different at 1 and 0 mins (+13-14 IBUs). This would make sense of course if the 30 min addition was mostly "finished" in terms of contributing IBUs by the time the hop stand begins whereas the later additions effectively have more to give.
My question is how to interpret the 1 min and 0 min additions. Specifically, when the switch is "off", their IBU contributions are effectively nil; when the switch "on", the IBU contributions are significant. Indeed, for a NEIPA-style beer where most/all of the hop additions come late or ass zero minute additions, the distinction can effectively double the IBUs for the recipe.
One interpretation would be that there is disagreement in the field as to whether late addition hops actually contribute IBUs. If you believe they do, turn the switch on. If you're a non-believer, leave the switch off. Perhaps one day we'll know who's right.
An alternative interpretation is that it is well-established that boil additions will continue to add IBUs throughout a hopstand, and the purpose of the switch is to distinguish that situation from one where boil hops are removed at the end of the boil and therefore can not contribute additional IBUs. Another way of thinking about this scenario would be adding an ounce of hops at the 0 min mark and then immediately removing them a second later. In this example, the IBUs would literally be 0, and this is consistent with what BeerSmith shows for a 0 min addition with the switch off.
Thanks in advance for any insight/feedback you might offer.
-Bill
I have a question about how to use "Estimate Boil Hop Util in Whirlpool" switch in the Equipment Profile. It is recommended to use it if steeping/whirlpooling.
If I understand the point of this switch, it makes an assumption that the hops added during the boil continue to contribute IBUs during the steep/whirlpool.
Here are examples of hop additions at 30 mins, 15 mins, 1 min, and 0 min, as well as a 15 minute steep at 180 degrees:
Switch On.
Switch Off.
Note that there is a small, extra IBU contribution from the 30 min addition with the switch on (+3 IBU). The effects are more pronounced at 15 mins (+6), and are considerably different at 1 and 0 mins (+13-14 IBUs). This would make sense of course if the 30 min addition was mostly "finished" in terms of contributing IBUs by the time the hop stand begins whereas the later additions effectively have more to give.
My question is how to interpret the 1 min and 0 min additions. Specifically, when the switch is "off", their IBU contributions are effectively nil; when the switch "on", the IBU contributions are significant. Indeed, for a NEIPA-style beer where most/all of the hop additions come late or ass zero minute additions, the distinction can effectively double the IBUs for the recipe.
One interpretation would be that there is disagreement in the field as to whether late addition hops actually contribute IBUs. If you believe they do, turn the switch on. If you're a non-believer, leave the switch off. Perhaps one day we'll know who's right.
An alternative interpretation is that it is well-established that boil additions will continue to add IBUs throughout a hopstand, and the purpose of the switch is to distinguish that situation from one where boil hops are removed at the end of the boil and therefore can not contribute additional IBUs. Another way of thinking about this scenario would be adding an ounce of hops at the 0 min mark and then immediately removing them a second later. In this example, the IBUs would literally be 0, and this is consistent with what BeerSmith shows for a 0 min addition with the switch off.
Thanks in advance for any insight/feedback you might offer.
-Bill