brew.grains

class brew.grains.Grain(name, color=None, ppg=None, hwe=None)

A representation of a type of grain.

Parameters:
  • name (str) – The name of the grain
  • color (float) – The color of the grain in SRM
  • ppg (float) – The potential points per gallon
  • hwe (float) – The hot water extract value
Raises:
convert_to_cereal(ppg=None)
convert_to_dme(ppg=44.0)
convert_to_lme(ppg=36.0)
format()
get_working_yield(brew_house_yield)

Get Working Yield

Parameters:brew_house_yield (float) – The Percent Brew House Yield
Returns:The working yield
Return type:float
to_dict()
to_json()
class brew.grains.GrainAddition(grain, weight=None, grain_type=u'cereal', units=u'imperial')

A representation of the grain as added to a Recipe.

Parameters:
  • grain (Grain) – The Grain object
  • weight (float) – The weight of the grain addition
  • grain_type (str) – The type of the grain being used
  • units (str) – The units
change_units()

Change units of the class from one type to the other

Returns:Grain Addition in new unit type
Return type:GrainAddition
convert_to_cereal(ppg=None, brew_house_yield=1.0)

Convert Grain Addition to GRAIN_TYPE_CEREAL

Parameters:
  • ppg (float) – The potential points per gallon
  • brew_house_yield (float) – The brew house yield as a percentage
Returns:

GrainAddition of type GRAIN_TYPE_CEREAL
Return type:

GrainAddition
convert_to_dme(ppg=44.0, brew_house_yield=1.0)

Convert Grain Addition to GRAIN_TYPE_DME

Parameters:
  • ppg (float) – The potential points per gallon
  • brew_house_yield (float) – The brew house yield as a percentage
Returns:

GrainAddition of type GRAIN_TYPE_DME
Return type:

GrainAddition
convert_to_lme(ppg=36.0, brew_house_yield=1.0)

Convert Grain Addition to GRAIN_TYPE_LME

Parameters:
  • ppg (float) – The potential points per gallon
  • brew_house_yield (float) – The brew house yield as a percentage
Returns:

GrainAddition of type GRAIN_TYPE_LME
Return type:

GrainAddition
format()
get_cereal_weight(ppg=30.0)

Get the weight of the addition in cereal weight

Parameters:ppg (float) – The potential points per gallon
Returns:Cereal weight
Return type:float
get_dme_weight()

Get the weight of the addition in Dry Malt Extract weight

Returns:Dry weight
Return type:float
get_gravity_units()

Get the gravity units for the Grain Addition :return: Gravity Units as PPG or HWE depending on units :rtype: float

get_lme_weight()

Get the weight of the addition in Liquid Malt Extract weight

Returns:LME weight
Return type:float
get_weight_map()

Get map of grain weights by type

Returns:Grain weights
Return type:dict
gu
set_units(units)

Set the units and unit types

Parameters:units (str) – The units
to_dict()
to_json()
classmethod validate(grain_data)