Package Exports

bitterness

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Readme

Bitterness

A basic library providing utility methods to calculate bitterness of a given recipe, in IBU measure unit, featuring Rager forumula, Tinseth formula or an average of the two.

Installation

    npm install bitterness

Usage

  var bitterness = require('bitterness');
  // ibu value with rager formula
  var rager = bitterness.rager(hop_grams, // grams of hop
                               time, // time in minutes
                               alpha_acids, // AA% in the form of % (e.g. 6% => 6)
                               batch_size, // size of the batch in liters
                               original_gravity); // OG in the form xxxx.xx (e.g. 1050.00)
  // ibu value with tinseth formula
  var tinseth = bitterness.tinseth(hop_grams, // grams of hop
                               time, // time in minutes
                               alpha_acids, // AA% in the form of % (e.g. 6% => 6)
                               batch_size, // size of the batch in liters
                               original_gravity);
  // ibu value using both formulas
  var average = bitterness.average(hop_grams, // grams of hop
                               time, // time in minutes
                               alpha_acids, // AA% in the form of % (e.g. 6% => 6)
                               batch_size, // size of the batch in liters
                               original_gravity);

Test

  npm test

Release History

  * 0.1.0 Initial release.
  * 0.1.2 Better organization, privatized some functions, writing test.
  * 0.1.4 Module pattern design. Updated usage section.