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.
A single can of Coke has 39 grams of sugar.) A teaspoon of sugar in your coffee or a half cup of ice cream won't kill you â all things in moderation â but the average sugar intake in the U.S. is 22 teaspoons per person per day. That's almost four times as much as the WHO's new guidelines suggest is healthy.