Allan writes, The purpose of the filter course is to prevent fine soil medium particles from washing into the drainage layer causing clogging or reduction of the drainage capacity of the drainage layer.
Just how much caffeine is too much? For the average person, up to 300 mg of coffee a day, or two to four cups of the average brewed coffee, is a moderate amount that isn't harmful. But once you hit more than four cups, you may experience less-than-desirable side effects.
Specialty coffee sales are increasing by 20% per year and account for nearly 8% of the 18 billion dollar U.S. coffee market.Coffee statistics show that among coffee drinkers the average consumption in the United States is 3.1 cups of coffee per day.pecialty coffee sales are increasing by 20% per year and account for nearly 8% of the 18 billion dollar U.S. coffee market.