Which extraction variable, when poorly controlled, results in pulling out bitter-tasting, undesirable compounds leading to a harsh sensation?
Answer
Over-extraction
Over-extraction happens when water spends too much time in contact with the grounds, drawing out bitter compounds that create a harsh, drying mouthfeel.

#Videos
Coffee (BREWING) Everything You Need To Know - YouTube
Related Questions
What is the technically accurate term describing the process of making coffee?What historical connotation is often associated with the linguistic roots of the word "brewing"?What flavor characteristic results from too little extraction, often because complex sweetness is missed?Which extraction variable, when poorly controlled, results in pulling out bitter-tasting, undesirable compounds leading to a harsh sensation?Which immersion method is characterized by using a mesh filter that allows fines and oils to pass through, yielding a heavier body?How must the contact time be managed when using a very fine coffee grind?What mechanical force distinguishes the Espresso method from gravity or immersion methods?What is the generally recommended temperature range (in Fahrenheit) for hot water used in ideal coffee extraction?What happens if agitation during coffee preparation is vigorous or prolonged?Why does the term "brewing" persist strongly in coffee culture despite its technical inaccuracy regarding fermentation?