coffee-ratio is a zero-dependency, must-have tool for all coffee artisans. With coffee-ratio, you can calculate coffee ratios for the perfect brew. Measuring how much water & coffee beans you need is also made possible with this library.
npm install --save @alehuo/coffee-ratio
TypeScript typings are included out of the box.
Case 1: What is the coffee ratio with 40 grams of coffee beans and 200 grams of water?
import { Water, Coffee, Ratio, isLeft } from "@alehuo/coffee-ratio";
const ratioResult = Ratio.calculate(Coffee.fromGrams(40), Water.fromGrams(200));
if (isLeft(ratioResult)) {
console.log(ratioResult.result);
/*
{
"ratio": 0.2,
"ratioParts": {
"firstPart": 1,
"secondPart": 5
},
"total": [Function: total]
}
*/
}You can use the total function to calculate required ingredients for any amount of cups you want to brew:
// Using ratioResult from the earlier piece of code
const totalResult = ratioResult.result.total(10);
if (isLeft(ratioResult)) {
console.log(ratioResult.result);
/*
{
water: {
value: 2000,
type: "millilitre"
},
coffee: {
value: 4000;
type: "gram";
}
}
*/
}Case 2: I want to brew coffee with 1:9 ratio. How much water do I need when I have 45 grams of coffee beans?
import { Water, Coffee, isLeft } from "@alehuo/coffee-ratio";
const waterAmount = Water.fromRatioAndCoffeeAmount(1 / 9, Coffee.fromGrams(45));
if (isLeft(waterAmount)) {
console.log(waterAmount.result);
/*
{
"value": 414,
"type": "millilitre"
}
*/
}MIT license.