def main():
# Define Grains
pale = Grain(u"Pale Malt (2 Row) US", color=1.8, ppg=37)
pale_add = GrainAddition(pale, weight=13.96)
crystal = Grain(u"Caramel/Crystal Malt - 20L", color=20.0, ppg=35)
crystal_add = GrainAddition(crystal, weight=0.78)
grain_additions = [pale_add, crystal_add]
# Define Hops
centennial = Hop(u"Centennial", percent_alpha_acids=0.14)
centennial_add = HopAddition(centennial, weight=0.57, boil_time=60.0)
cascade = Hop(u"Cascade (US)", percent_alpha_acids=0.07)
cascade_add = HopAddition(cascade, weight=0.76, boil_time=5.0)
hop_additions = [centennial_add, cascade_add]
# Define Yeast
yeast = Yeast(u"Wyeast 1056")
# Define Recipe
beer = Recipe(
u"pale ale",
grain_additions=grain_additions,
hop_additions=hop_additions,
yeast=yeast,
brew_house_yield=0.70, # %
start_volume=7.0, # G
final_volume=5.0, # G
)
print(beer.format())
def test_convert_to_cereal_raises(self):
grain_add = GrainAddition(pale_lme,
weight=1.0,
grain_type=GRAIN_TYPE_LME)
with self.assertRaises(GrainException) as ctx:
grain_add.convert_to_cereal(brew_house_yield=BHY)
self.assertEquals(str(ctx.exception),
u'Must provide PPG to convert to cereal')
def test_get_weight_specialty(self):
grain_add = GrainAddition(pale, weight=13.96,
grain_type=GRAIN_TYPE_SPECIALTY)
self.assertEquals(grain_add.grain_type, GRAIN_TYPE_SPECIALTY)
out = grain_add.get_cereal_weight(ppg=ppg_pale)
self.assertEqual(round(out, 2), 13.96)
out = grain_add.get_lme_weight()
self.assertEqual(round(out, 2), 14.35)
out = grain_add.get_dme_weight()
self.assertEqual(round(out, 2), 11.74)
def test_get_weight_dme(self):
grain_add = GrainAddition(pale_dme, weight=11.74,
grain_type=GRAIN_TYPE_DME)
self.assertEquals(grain_add.grain_type, GRAIN_TYPE_DME)
out = grain_add.get_cereal_weight(ppg=ppg_pale)
self.assertEqual(round(out, 2), 13.96)
out = grain_add.get_lme_weight()
self.assertEqual(round(out, 2), 14.35)
out = grain_add.get_dme_weight()
self.assertEqual(round(out, 2), 11.74)
def test_get_weight_dry(self):
grain_add = GrainAddition(pale, weight=8.38,
grain_type=GRAIN_TYPE_DME)
self.assertEquals(grain_add.grain_type, GRAIN_TYPE_DME)
out = grain_add.get_cereal_weight()
self.assertEqual(round(out, 2), 13.97)
out = grain_add.get_lme_weight()
self.assertEqual(round(out, 2), 10.48)
out = grain_add.get_dry_weight()
self.assertEqual(round(out, 2), 8.38)
def test_convert_to_dme(self):
grain_add = GrainAddition(pale_dme,
weight=1.0,
grain_type=GRAIN_TYPE_DME)
ga_cereal = grain_add.convert_to_cereal(ppg=ppg_pale,
brew_house_yield=BHY)
ga_lme = grain_add.convert_to_lme(ppg=PPG_LME, brew_house_yield=BHY)
ga_dme = grain_add.convert_to_dme(ppg=PPG_DME, brew_house_yield=BHY)
self.assertEquals(round(ga_cereal.weight, 2), 1.7)
self.assertEquals(round(ga_lme.weight, 2), 1.22)
self.assertEquals(ga_dme.weight, 1.0)
def test_recipe_matches(self):
pale_add = GrainAddition(pale, weight=8.69)
crystal_add = GrainAddition(crystal, weight=1.02)
pale_ale = Recipe(
name=u"pale ale",
grain_additions=[pale_add, crystal_add],
hop_additions=hop_additions,
yeast=yeast,
brew_house_yield=0.70,
start_volume=7.0,
final_volume=5.0,
)
out = self.style.recipe_matches(pale_ale)
self.assertTrue(out)
def test_recipe_errors_none(self):
pale_add = GrainAddition(pale, weight=8.69)
crystal_add = GrainAddition(crystal, weight=1.02)
pale_ale = Recipe(
name=u"pale ale",
grain_additions=[pale_add, crystal_add],
hop_additions=hop_additions,
yeast=yeast,
brew_house_yield=0.70,
start_volume=7.0,
final_volume=5.0,
)
out = self.style.recipe_errors(pale_ale)
expected = []
self.assertEquals(out, expected)
def main():
# Define Grains
pale = Grain(u"Pale Malt (2 Row) US", color=1.8, ppg=37)
rye = Grain(u"Rye Malt", color=3.5, ppg=38)
crystal = Grain(u"Caramel/Crystal - 60L", color=60, ppg=34)
carapils = Grain(u"Carapils/Dextrine Malt", color=1.8, ppg=33)
flaked_wheat = Grain(u"Flaked Wheat", color=2, ppg=34)
pale_add = GrainAddition(pale, weight=13.96)
rye_add = GrainAddition(rye, weight=3.0)
crystal_add = GrainAddition(crystal, weight=1.25)
carapils_add = GrainAddition(carapils, weight=0.5)
flaked_wheat_add = GrainAddition(flaked_wheat, weight=0.5)
grain_additions = [
pale_add, rye_add, crystal_add, carapils_add, flaked_wheat_add
]
# Define Hops
mt_hood = Hop(u"Mount Hood", percent_alpha_acids=0.048)
columbus = Hop(u"Columbus", percent_alpha_acids=0.15)
mt_hood_add_01 = HopAddition(mt_hood, weight=1.0, boil_time=60.0)
columbus_add_01 = HopAddition(columbus, weight=1.0, boil_time=60.0)
mt_hood_add_02 = HopAddition(mt_hood, weight=0.5, boil_time=30.0)
mt_hood_add_03 = HopAddition(mt_hood, weight=1.5, boil_time=1.0)
columbus_add_02 = HopAddition(columbus, weight=1.0, boil_time=0.0)
hop_additions = [
mt_hood_add_01, columbus_add_01, mt_hood_add_02, mt_hood_add_03,
columbus_add_02
]
# Define Yeast
yeast = Yeast(u"Wyeast 1450", percent_attenuation=0.75)
# Define Recipe
beer = Recipe(
u"pale ale",
grain_additions=grain_additions,
hop_additions=hop_additions,
yeast=yeast,
brew_house_yield=0.70, # %
start_volume=7.5, # G
final_volume=5.5, # G
)
print(beer.format())
def parse_cereals(cereal, loader, dir_suffix='cereals/'):
"""
Parse grains data from a recipe
:param dict cereal: A representation of a cereal
:param DataLoader loader: A class to load additional information
Grain must have the following top level attributes:
* name (str)
* weight (float)
* data (dict) (optional)
Additionally grains may contain override data in the 'data'
attribute with the following keys:
* color (float)
* ppg (int)
"""
GrainAddition.validate(cereal)
cereal_data = loader.get_item(dir_suffix, cereal[u'name'])
name = cereal_data.get(u'name', cereal[u'name'])
color = None
ppg = None
if u'data' in cereal:
color = cereal[u'data'].get(u'color', None)
ppg = cereal[u'data'].get(u'ppg', None)
if not color:
color = cereal_data.get(u'color', None)
if not ppg:
ppg = cereal_data.get(u'ppg', None)
grain_obj = Grain(name, color=color, ppg=ppg)
grain_add_kwargs = {
u'weight': float(cereal[u'weight']),
}
if u'grain_type' in cereal:
grain_add_kwargs[u'grain_type'] = cereal[u'grain_type']
if u'units' in cereal:
grain_add_kwargs[u'units'] = cereal[u'units']
return GrainAddition(grain_obj, **grain_add_kwargs)
def test_get_total_points_dme(self):
pale_dme_add = GrainAddition(pale_dme,
weight=11.74,
grain_type=GRAIN_TYPE_DME,
units=IMPERIAL_UNITS)
recipe = Recipe(
u"dme",
grain_additions=[pale_dme_add],
hop_additions=self.hop_additions,
yeast=self.yeast,
units=IMPERIAL_UNITS,
)
out = recipe.get_total_points()
self.assertEquals(round(out, 1), 516.6)
def test_get_grain_add_cereal_weight_dme(self):
pale_dme_add = GrainAddition(pale_dme,
weight=11.74,
grain_type=GRAIN_TYPE_DME,
units=IMPERIAL_UNITS)
recipe = Recipe(
u"dme",
grain_additions=[pale_dme_add],
hop_additions=self.hop_additions,
yeast=self.yeast,
units=IMPERIAL_UNITS,
)
out = recipe.get_grain_add_cereal_weight(pale_dme_add, ppg=ppg_pale)
self.assertEquals(round(out, 2), 13.96)
def test_get_grain_add_dry_weight_lme(self):
pale_lme_add = GrainAddition(pale_lme,
weight=14.35,
grain_type=GRAIN_TYPE_LME,
units=IMPERIAL_UNITS)
recipe = Recipe(
u"lme",
grain_additions=[pale_lme_add],
hop_additions=self.hop_additions,
yeast=self.yeast,
units=IMPERIAL_UNITS,
)
out = recipe.get_grain_add_dry_weight(pale_lme_add)
self.assertEquals(round(out, 2), 11.74)
def test_validate(self):
data = self.grain_add.to_dict()
GrainAddition.validate(data)
# Define Grains
ppg_pale = 37.0
pale = Grain(u'pale 2-row',
color=2.0,
ppg=ppg_pale)
pale_lme = pale.convert_to_lme()
pale_dme = pale.convert_to_dme()
ppg_crystal = 35.0
crystal = Grain(u'crystal C20',
color=20.0,
ppg=ppg_crystal)
grain_list = [pale, crystal]
pale_add = GrainAddition(pale,
weight=13.96)
pale_add_lme = pale_add.convert_to_lme(brew_house_yield=BHY)
pale_add_dme = pale_add.convert_to_dme(brew_house_yield=BHY)
crystal_add = GrainAddition(crystal,
weight=0.78)
grain_additions = [pale_add, crystal_add]
grain_additions_lme = [pale_add_lme, crystal_add]
grain_additions_dme = [pale_add_dme, crystal_add]
# Define Hops
centennial = Hop(name=u'centennial',
percent_alpha_acids=0.14)
cascade = Hop(name=u'cascade',
percent_alpha_acids=0.07)
hop_list = [centennial, cascade]
from brew.styles import Style from brew.yeasts import Yeast BHY = 0.70 # Define Grains ppg_pale = 37.0 pale = Grain(u"pale 2-row", color=2.0, ppg=ppg_pale) pale_lme = pale.convert_to_lme() pale_dme = pale.convert_to_dme() ppg_crystal = 35.0 crystal = Grain(u"crystal C20", color=20.0, ppg=ppg_crystal) grain_list = [pale, crystal] pale_add = GrainAddition(pale, weight=13.96) pale_add_lme = pale_add.convert_to_lme(brew_house_yield=BHY) pale_add_dme = pale_add.convert_to_dme(brew_house_yield=BHY) crystal_add = GrainAddition(crystal, weight=0.78) grain_additions = [pale_add, crystal_add] grain_additions_lme = [pale_add_lme, crystal_add] grain_additions_dme = [pale_add_dme, crystal_add] # Define Hops centennial = Hop(name=u"centennial", percent_alpha_acids=0.14) cascade = Hop(name=u"cascade", percent_alpha_acids=0.07) hop_list = [centennial, cascade] centennial_add = HopAddition(centennial, boil_time=60.0, weight=0.57) cascade_add = HopAddition(cascade, boil_time=5.0, weight=0.76)