mash_calcs: Mash temperature calculator

In whanrott/fermentR: Converters and Calculators for Brewing and Fermentation

Description

Use mash_calc to calculate mash composition when brewing beer. Use strike to calculate the strike temperature for hot liquor to achieve a given mash temperature. The word liquor is used here in the brewing sense to mean water which is mixed into the mash.

Usage

mash_calcs(ml = NA, mg = NA, tm = NA, tl = NA, tg = NA, shl = 1,
  shg = 0.4)

strike(ml, mg, tm, tg)

step_mash_by_boiling(ml, mg, tm, tg)

Arguments

ml	mass of liquor in Kg (or volume in L)
mg	mass of grist in Kg
tm	temperature of mash in degrees C after mixing
tl	temperature of liquor in degrees C before mixing
tg	temperature of grist in degrees C before mixing
shl	specific heat of liquor relative to pure water. Defaults to 1.0
shg	specific heat of grist relative to the liquor. Defaults to 0.4
shw	specific heat of pure water. This is 4.181kJ/Kg/K

Value

the missing variable in the equation tm=(shl*tl*ml+shg*tg*mg)/(shl*ml+shg*mg)

References

Lewis MJ, Young, TW. (2001). Brewing, 2nd Edition. Klewer Academic / Plenum Publishers

B.K Bala & J.L Woods (1991) "Physical and Thermal Properties of Malt", Drying Technology, 9:4, 1091-1104, DOI: 10.1080/07373939108916735

"Feel the Mash Heat", BYO Magazine, Sept 1997. http://byo.com/stories/item/627-feel-the-mash-heat

Examples

# calculate temperature of liquor when mashing in
mash_calcs(ml = 5, mg = 5, tm = NA, tl = 80, tg = 20)
# calculate strike temperature
mash_calcs(5,5,63,NA,20)
# calculate strike temperature
strike(5,5,63,20)

whanrott/fermentR documentation built on May 4, 2019, 5:22 a.m.