Coffee is a key—and profitable—onsite beverage. Here are the six different variables that will lead to brewing perfection:
1. Water. Since water makes up about 98 percent of a cup of coffee, it’s only logical that good water will go a long way to making a great coffee. A good water filter is a must. Ideally water should be free of any odors or off tastes and dissolved minerals should be about 50-100 parts per million.
2. Time. The time water is in contact with gr