brew.utilities.hops¶
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class
brew.utilities.hops.HopsUtilization(hop_addition, units=u'imperial')¶ http://www.boondocks-brewing.com/hops
Parameters: - hop_addition (HopAddition) – A hop addition
- units (str) – The units
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change_units()¶ Change units of the class from one type to the other
Returns: Hop Addition in new unit type Return type: HopAddition
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classmethod
format_utilization_table()¶ Percent Alpha Acid Utilization - Boil Time vs Wort Original Gravity
Returns: The formatted utilization table Return type: str Source:
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get_ibus(sg, final_volume)¶ Get the IBUs
Parameters: - sg (float) – Specific Gravity
- final_volume (float) – The Final Volume of the wort
Returns: The IBUs of the wort
Return type: float
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classmethod
get_percent_utilization(sg, boil_time)¶ Get the percent utilization
Parameters: - sg (float) – Specific Gravity
- boil_time (float) – The Boil Time in minutes
Raises: NotImplementedError – This must be overridden
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classmethod
get_utilization_table(gravity_list, boil_time_list, sig=3)¶ Get the utilization table for the class
Parameters: - gravity_list (list) – A list of specific gravities
- boil_time_list (list) – A list of boil times in minutes
- sig (int) – Significant figures to round
Returns: A table of utilization for specific gravity vs boil time
Return type: list
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set_units(units)¶ Set the units and unit types
Parameters: units (str) – The units
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class
brew.utilities.hops.HopsUtilizationJackieRager(hop_addition, units=u'imperial')¶ Jackie Rager Hops Utilization Method
Best for extract and partial mash brewing.
Parameters: - hop_addition (HopAddition) – A hop addition
- units (str) – The units
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change_units()¶ Change units of the class from one type to the other
Returns: Hop Addition in new unit type Return type: HopAddition
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format_utilization_table()¶ Percent Alpha Acid Utilization - Boil Time vs Wort Original Gravity
Returns: The formatted utilization table Return type: str Source:
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classmethod
get_c_gravity(sg)¶ Get Cgravity
Parameters: sg (float) – Specific Gravity Returns: Cgravity Return type: float Cgravity is a constant to adjust the boil size when dealing with specific gravity greater than 1.050 in the calculation of IBUs.
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get_ibus(sg, final_volume)¶ Get the IBUs
Parameters: - sg (float) – Specific Gravity
- final_volume (float) – The Final Volume of the wort
Returns: The IBUs of the wort
Return type: float
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classmethod
get_percent_utilization(sg, boil_time)¶ Get the percent utilization
Parameters: - sg (float) – Specific Gravity
- boil_time (float) – The Boil Time in minutes
Returns: The percent utilization
Return type: float
Source:
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get_utilization_table(gravity_list, boil_time_list, sig=3)¶ Get the utilization table for the class
Parameters: - gravity_list (list) – A list of specific gravities
- boil_time_list (list) – A list of boil times in minutes
- sig (int) – Significant figures to round
Returns: A table of utilization for specific gravity vs boil time
Return type: list
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set_units(units)¶ Set the units and unit types
Parameters: units (str) – The units
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class
brew.utilities.hops.HopsUtilizationGlennTinseth(hop_addition, units=u'imperial')¶ Glenn Tinseth Hops Utilization Method
Best for all grain brewing.
Parameters: - hop_addition (HopAddition) – A hop addition
- units (str) – The units
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change_units()¶ Change units of the class from one type to the other
Returns: Hop Addition in new unit type Return type: HopAddition
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format_utilization_table()¶ Percent Alpha Acid Utilization - Boil Time vs Wort Original Gravity
Returns: The formatted utilization table Return type: str Source:
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classmethod
get_bigness_factor(sg)¶ Get Bigness Factor
Parameters: sg (float) – Specific Gravity Returns: Bigness Factor Return type: float The Bigness factor accounts for reduced utilization due to higher wort gravities. Use an average gravity value for the entire boil to account for changes in the wort volume.
\(\text{Bigness factor} = 1.65 \times 0.000125^{\text{wort gravity} - 1}\)
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classmethod
get_boil_time_factor(boil_time)¶ Get Boil Time Factor
Parameters: boil_time (float) – Boil Time in minutes Returns: Boil Time Factor Return type: float The Boil Time factor accounts for the change in utilization due to boil time:
\(\text{Boil Time factor} = \frac{1 - e^{-0.04 \times \text{time in mins}}}{4.15}\)
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get_ibus(sg, final_volume)¶ Get the IBUs
Parameters: - sg (float) – Specific Gravity
- final_volume (float) – The Final Volume of the wort
Returns: The IBUs of the wort
Return type: float
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classmethod
get_percent_utilization(sg, boil_time)¶ Get the percent utilization
Parameters: - sg (float) – Specific Gravity
- boil_time (float) – The Boil Time in minutes
Returns: The percent utilization
Return type: float
Source:
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get_utilization_table(gravity_list, boil_time_list, sig=3)¶ Get the utilization table for the class
Parameters: - gravity_list (list) – A list of specific gravities
- boil_time_list (list) – A list of boil times in minutes
- sig (int) – Significant figures to round
Returns: A table of utilization for specific gravity vs boil time
Return type: list
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set_units(units)¶ Set the units and unit types
Parameters: units (str) – The units