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Class BeerColorCalc

Beer color calculations. Example:

const calc = new BeerColorCalc(10);
calc.morey();
calc.daniels();

Hierarchy

  • BeerColorCalc

Index

Constructors

Properties

Methods

Constructors

constructor

Properties

mcu

mcu: number

Methods

calculate

daniels

  • Daniels' model differs from Mosher's and suggests that homebrew is generally darker than commercial beers. Like Mosher's model, the formula has a minimum color that is not reasonable. Consequently the formula should only be used for beers with MCU greater than 11.

    Returns Color

morey

  • Morey's approximation is based on five assumptions.

    1. SRM is approximately equal to MCU for values from 0 to 10.
    2. Homebrew is generally darker than commercial beer.
    3. Base on the previous qualitative postulate, Morey assumed that Ray Daniels’ predicted relationship exists for beers with color greater than 10.
    4. Since Mosher’s equation predicts darker color than Daniels’ model for values of MCU greater than 37, Morey assumed that Mosher’s approximation governed beer color for all values more than 37 MCUs.
    5. Difference in color for beers greater than 40 SRM are essentially impossible to detect visually; therefore, Morey limited the analysis to SRM of 50 and less.

    Returns Color

mosher

  • Randy Mosher developed a model based on commercial beers whose recipes and color were known. Using this approximation, minimum beer color is 4.7. This is not realistic and the model should only be used for beer with MCU greater than 7.

    Returns Color

Static derive

  • Alternative constructor which allows color to be derived from batch volume and the fermentables:

    const calc = BeerColorCalc.derive(Volume.liter(20), [
      new Fermentable({ mass: new Mass(MassUnit.USPound, 7), color: new Color(ColorUnit.Lovibond, 4) }),
      new Fermentable({ mass: new Mass(MassUnit.USPound, 0.5), color: new Color(ColorUnit.Lovibond, 60) }),
    ]);

    @param batchVolume the total batch volume.
    @param fermentables the array of fermentables.

    Parameters

    Returns BeerColorCalc

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