def infuse(ctx, temp, target, ratio, grain, water):
"""
Given the current mash temperature, work out how much water of a given
temp needs to be added to adjust the temperature
"""
temp_unit = ctx.obj["units"]["temp"]
if not temp:
temp = temp = inputs.get_unit_input(temp_unit,
"Current temperature of mash")
if not target:
target = inputs.get_unit_input(temp_unit, "Target temperature of mash")
if not ratio:
unit = "Quarts/lbs"
if is_metric(ctx):
unit = "Liters/kg"
ratio = inputs.get_unit_input(unit, "Grist/water ratio")
if not grain:
grain = inputs.get_unit_input(ctx.obj["units"]["lrg_weight"],
"Weight of grain in mash")
if not water:
water = inputs.get_unit_input(ctx.obj["units"]["temp"],
"Temperature of infusion water")
try:
infusion = bm.infusion(ratio, temp, target, water, grain)
except ZeroDivisionError:
infusion = 0
unit = "quarts"
if is_metric(ctx):
unit = "liters"
print("Infuse with {0:.2f} {1} @ {2}{3}".format(infusion, unit, water,
temp_unit))
def strike(ctx, grain, vol, temp):
"""
Calculate the required strike water temperature given the mass of grains,
volume of water, and desired final mash temperature
"""
if not grain:
grain = inputs.get_unit_input(ctx.obj["units"]["lrg_weight"],
"Weight of grains: ")
if not vol:
vol = inputs.get_unit_input(ctx.obj["units"]["vol"],
"Volume of water: ")
if not temp:
temp = inputs.get_unit_input(ctx.obj["units"]["temp"],
"Desired mash temp: ")
if is_metric(ctx):
grain = bm.kg_to_lbs(grain)
vol = bm.l_to_g(vol)
temp = bm.c_to_f(temp)
strike_temp = bm.strike_temp(grain, vol, temp)
if is_metric(ctx):
strike_temp = bm.f_to_c(strike_temp)
print("Strike water temp should be {0:.3f}{1}".format(
strike_temp, ctx.obj["units"]["temp"]))
def prime(ctx, beer, vol, temp):
"""
Calculates the amount of table sugar, corn sugar, or DME needed to achieve
the requested CO2 volumes for bottle priming
"""
if not beer:
beer = inputs.get_unit_input(ctx.obj["units"]["vol"],
"Volume of beer to prime")
if not vol:
vol = inputs.get_input("Desired volumes of CO2: ", lambda x: float(x))
if not temp:
temp = temp = inputs.get_unit_input(ctx.obj["units"]["temp"],
"Temperature of beer")
if is_metric(ctx):
temp = bm.c_to_f(temp)
beer = bm.l_to_g(beer)
sugar = bm.priming(temp, beer, vol)
if is_imperial(ctx):
sugar = bm.g_to_oz(sugar)
unit = ctx.obj["units"]["weight"]
print()
print("Use only one of the following:")
print("Table sugar: {0:.2f}{1}".format(sugar, unit))
print("Corn Sugar: {0:.2f}{1}".format(sugar * 1.099421965317919, unit))
print("DME: {0:.2f}{1}".format(sugar * 1.4705202312138728, unit))
def adjust_gravity(ctx, og, vol, ng):
"""
Calculate the amount of liquid to boil off/dilute with
to achieve a desired gravity.
"""
if not og:
og = inputs.get_gravity_input("Original Gravity: ")
if not ng:
ng = inputs.get_gravity_input("Desired Gravity: ")
if not vol:
vol = inputs.get_unit_input(ctx.obj["units"]["vol"],
"Current volume of wort")
valid_range = inputs.between(1.0, 1.2)
if not valid_range(og) or not valid_range(ng):
sys.exit(1)
vol_adj = bm.adjust_gravity_volume(vol, og, ng)
print("\nNew volume of wort will be {0:.2f}".format(vol_adj))
diff = vol - vol_adj
if diff >= 0:
print("Boil off {0:.2f} {1} of wort".format(diff,
ctx.obj["units"]["vol"]))
else:
print("Dilute wort with {0:.2f} {1} of water".format(
diff * -1, ctx.obj["units"]["vol"]))
def adjust_volume(ctx, og, vol, newvol):
"""
Calculate the new gravity after a change in wort volume either through
dilution or boil off
"""
if not og:
og = inputs.get_gravity_input("Original Gravity: ")
if not vol:
vol = inputs.get_unit_input(ctx.obj["units"]["vol"],
"Current volume of wort")
if not newvol:
newvol = inputs.get_unit_input(ctx.obj["units"]["vol"],
"New volume of wort")
valid_range = inputs.between(1.0, 1.2)
if not valid_range(og):
sys.exit(1)
new_grav = bm.adjust_volume_gravity(vol, og, newvol)
print("The new gravity will be {0:.3f}".format(new_grav))
def kegpsi(ctx, vol, temp):
"""
Calculates the regulator pressure required to achieve desired CO2 volumes.
"""
if not vol:
vol = inputs.get_input("Desired volumes of CO2: ", lambda x: float(x))
if not temp:
temp = inputs.get_unit_input(ctx.obj["units"]["temp"],
"Temperature of keg")
if is_metric(ctx):
temp = bm.c_to_f(temp)
print("Keg pressure required: {0:.2f}psi".format(bm.keg_psi(temp, vol)))
def dme(ctx, points, vol):
"""
Given the current volume of the mash, work out how much Dry Malt
Extract(DME) to add to reach your target gravity
"""
if not points:
points = inputs.get_input("Points needed to achieve target gravity: ",
lambda x: float(x))
if not vol:
vol = inputs.get_unit_input(ctx.obj["units"]["temp"],
"Current volume of the wort")
if is_metric(ctx):
vol = bm.l_to_g(vol)
amt_dme = bm.pre_boil_dme(points, vol)
if is_metric(ctx):
amt_dme = bm.oz_to_g(amt_dme)
print(
"Add {0:.2f}{1} of DME to raise the wort gravity by {2} points".format(
amt_dme, ctx.obj["units"]["weight"], points))