def main():
print("Enzymatic rests schedule")
liquor_to_grist_ratio = 1.5 # qt:lbs
grain_weight = 8.0 # lbs
water_volume = grain_weight * liquor_to_grist_ratio # qt
print("")
print("Starting with {} lbs of grain".format(grain_weight))
target_temp = 110
initial_temp = 70 # grain temperature without water
sk_temp = strike_temp(target_temp, initial_temp,
liquor_to_grist_ratio=liquor_to_grist_ratio)
print("")
print("Bring {} qts of water to {} degF before adding grains".format(
water_volume, round(sk_temp, 1))) # noqa
print("Your temperature should then reach {} degF".format(target_temp))
print("Keep your temperature here for 20 minutes")
initial_temp = sk_temp
target_temp = 140
infusion_temp = 210
infusion_volume = mash_infusion(target_temp, initial_temp,
grain_weight, water_volume,
infusion_temp=infusion_temp)
print("")
print("Add {} qts of {} degF water".format(round(infusion_volume, 1), infusion_temp)) # noqa
print("Your temperature should then reach {} degF".format(target_temp))
print("Keep your temperature here for 40 minutes")
initial_temp = target_temp
target_temp = 158
infusion_temp = 210
water_volume += infusion_volume
infusion_volume = mash_infusion(target_temp, initial_temp,
grain_weight, water_volume,
infusion_temp=infusion_temp)
print("")
print("Add {} qts of {} degF water".format(round(infusion_volume, 1), infusion_temp)) # noqa
print("Your temperature should then reach {} degF".format(target_temp))
print("Keep your temperature here for 20 minutes")
print("")
water_volume += infusion_volume
print("You should now have {} qts of water".format(round(water_volume, 1)))
print("Now remove the grains and continue with brewing")
def main():
print("Enzymatic rests schedule")
liquor_to_grist_ratio = 1.5 # qt:lbs
grain_weight = 2.25 # lbs
water_volume = grain_weight * liquor_to_grist_ratio # qt
print("")
print("Starting with {} lbs of grain".format(grain_weight))
target_temp = 110
initial_temp = 70 # grain temperature without water
sk_temp = strike_temp(target_temp,
initial_temp,
liquor_to_grist_ratio=liquor_to_grist_ratio)
print("")
print("Bring {} qts of water to {} degF before adding grains".format(
water_volume, round(sk_temp, 1))) # noqa
print("Your temperature should then reach {} degF".format(target_temp))
print("Keep your temperature here for 20 minutes")
# Settled at 112 degF. My guess is that I didn't stir the
# water as it was heating and the thermometer read the sk_temp
# when it was actuall hotter. It's also possible the heat from
# the mash tun (my pot) transfers in over time.
initial_temp = 113
target_temp = 140
infusion_temp = 205 # boils at 3K ft
infusion_volume = mash_infusion(
target_temp,
initial_temp,
grain_weight,
water_volume,
infusion_temp=infusion_temp,
)
print("")
print("Add {} qts of {} degF water".format(round(infusion_volume, 2),
infusion_temp)) # noqa
print("Your temperature should then reach {} degF".format(target_temp))
print("Keep your temperature here for 40 minutes")
# Settles at 125deg F, which was an issue since I was using 212 instead of
# 205 for the temp. I had to add heat slowly to get it fixed to 140.
initial_temp = target_temp
target_temp = 158
infusion_temp = 205 # boils at 3K ft
# water volume is usually the addition of the infusion volume
# It recommended 1.3qt, which I rounded up to 5.25 cups
water_volume += 5.25 / 4.0 # += infusion_volume
infusion_volume = mash_infusion(
target_temp,
initial_temp,
grain_weight,
water_volume,
infusion_temp=infusion_temp,
)
print("")
print("Add {} qts of {} degF water".format(round(infusion_volume, 2),
infusion_temp)) # noqa
print("Your temperature should then reach {} degF".format(target_temp))
print("Keep your temperature here for 20 minutes")
print("")
water_volume += infusion_volume
print("You should now have {} qts of water".format(round(water_volume, 2)))
print("Now remove the grains and continue with brewing")
def test_strike_temp(self):
temp = strike_temp(104.0, 70.0, 1.0 / 1.0)
self.assertEquals(round(temp, 2), 110.8)
def main():
print("Enzymatic rests schedule")
liquor_to_grist_ratio = 1.5 # qt:lbs
grain_weight = 8.0 # lbs
water_volume = grain_weight * liquor_to_grist_ratio # qt
print("")
print("Starting with {} lbs of grain".format(grain_weight))
target_temp = 110
initial_temp = 70 # grain temperature without water
sk_temp = strike_temp(target_temp,
initial_temp,
liquor_to_grist_ratio=liquor_to_grist_ratio)
print("")
print("Bring {} qts of water to {} degF before adding grains".format(
water_volume, round(sk_temp, 1))) # noqa
print("Your temperature should then reach {} degF".format(target_temp))
print("Keep your temperature here for 20 minutes")
initial_temp = sk_temp
target_temp = 140
infusion_temp = 210
infusion_volume = mash_infusion(
target_temp,
initial_temp,
grain_weight,
water_volume,
infusion_temp=infusion_temp,
)
print("")
print("Add {} qts of {} degF water".format(round(infusion_volume, 1),
infusion_temp)) # noqa
print("Your temperature should then reach {} degF".format(target_temp))
print("Keep your temperature here for 40 minutes")
initial_temp = target_temp
target_temp = 158
infusion_temp = 210
water_volume += infusion_volume
infusion_volume = mash_infusion(
target_temp,
initial_temp,
grain_weight,
water_volume,
infusion_temp=infusion_temp,
)
print("")
print("Add {} qts of {} degF water".format(round(infusion_volume, 1),
infusion_temp)) # noqa
print("Your temperature should then reach {} degF".format(target_temp))
print("Keep your temperature here for 20 minutes")
print("")
water_volume += infusion_volume
print("You should now have {} qts of water".format(round(water_volume, 1)))
print("Now remove the grains and continue with brewing")
def test_strike_temp(self):
temp = strike_temp(104.0, 70.0, 1.0 / 1.0, )
self.assertEquals(round(temp, 2), 110.8)
def main():
print("Enzymatic rests schedule")
print("")
print("This is a 20/40/20 min schedule for temps 110/140/158 F respectively")
altitude = 3623 # ft
bp = boiling_point(altitude)
liquor_to_grist_ratio = 1.5 # qt water per lbs grain
grain_weight = 12.2 + 0.38 # lbs grain
water_volume = grain_weight * liquor_to_grist_ratio # qt
# https://www.brewersfriend.com/2010/06/12/water-volume-management-in-all-grain-brewing/
# Rule of thumb is 1/2 qt per lbs grain (or as high as 0.8 quarts)
grain_absorbtion = 0.6 * grain_weight # Lost to the grain taking on liquid
dead_space = 1.0 # Lost because inability to remove all liquid
water_loss = grain_absorbtion + dead_space
yeast_starter_volume = 2.0 # qts of water in yeast starter
# Do not exceed this number of qts after water loss
max_water_volume = 7.0 * 4 + water_loss - yeast_starter_volume
print("")
print("Starting with {:0.2f} lbs of grain".format(grain_weight))
target_temp = 110
initial_temp = 70 # grain temperature without water
sk_temp = strike_temp(target_temp, initial_temp,
liquor_to_grist_ratio=liquor_to_grist_ratio)
# Recommended 18.87 qts but I've rounded up to 19.0
actual_water_volume = 19.0
water_volume = actual_water_volume
print("")
print("Bring {:0.2f} qts of water to {:0.2f} degF before adding grains".format(
water_volume, round(sk_temp, 1))) # noqa
print("Your temperature should then reach {:0.2f} degF".format(target_temp))
print("Keep your temperature here for 20 minutes")
initial_temp = 110 # should be previous target_temp, modify from real data
target_temp = 140
infusion_temp = bp
infusion_volume = mash_infusion(target_temp, initial_temp,
grain_weight, water_volume,
infusion_temp=infusion_temp)
# Recommended 9.86 qts but I've rounded up to 10.0
actual_infusion_volume = 10.0
infusion_volume = actual_infusion_volume
manual_heat = False
if water_volume + infusion_volume > max_water_volume:
infusion_volume = max_water_volume - water_volume
water_volume = max_water_volume
manual_heat = True
else:
water_volume += infusion_volume
print("")
print("Add {:0.2f} qts of {:0.2f} degF water".format(round(infusion_volume, 2), infusion_temp)) # noqa
if manual_heat:
print("Your temperature will only reach {:0.2f} degF if you add heat manually".format(target_temp))
else:
print("Your temperature should then reach {:0.2f} degF".format(target_temp))
print("Keep your temperature here for 40 minutes")
initial_temp = 140 # Should be previous target_temp, modify from real data
target_temp = 158
infusion_temp = bp
infusion_volume = mash_infusion(target_temp, initial_temp,
grain_weight, water_volume,
infusion_temp=infusion_temp)
manual_heat = False
if water_volume + infusion_volume > max_water_volume:
infusion_volume = max_water_volume - water_volume
water_volume = max_water_volume
manual_heat = True
else:
water_volume += infusion_volume
print("")
print("Add {:0.2f} qts of {:0.2f} degF water".format(round(infusion_volume, 2), infusion_temp)) # noqa
if manual_heat:
print("Your temperature will only reach {:0.2f} degF if you add heat manually".format(target_temp))
else:
print("Your temperature should then reach {:0.2f} degF".format(target_temp))
print("Keep your temperature here for 20 minutes")
print("")
print("You should now have {:0.2f} qts of water in the mash".format(round(water_volume, 2)))
print("Now remove the grains and continue with brewing")
final_water_volume = water_volume - water_loss
print("")
print("Water lost to grain will be approximately {:0.2f} quarts".format(water_loss))
print("Leaving you {:0.2f} quarts in your brew or {:0.2f} gallons".format(final_water_volume,
final_water_volume / 4.0))
print("Your yeast starter will make up additional volume of {:0.2f} quarts".format(yeast_starter_volume))
"""