Why does good coffee matter?
I could wax lyrical for thousands of words about my frustrations with cafes that sell a bad coffee made from ingredients costing about 50 cents for at least $3.50. I don’t think that’s necessary though. There is a more fundamental reason why good coffee matters, and bad coffee sucks.
The lethal dose of caffeine is estimated to be about 150 to 200 milligrams per kilogram of body mass or roughly 80 to 100 cups of coffee for an average adult. I imagine, that if I asked a doctor, he or she would recommend no more than 2 cups of coffee per day. Taking a point somewhere in the middle, say, 4 cups per day; I have approximately only 70,000 coffees left to drink in my life.
The point is, we each only have a limited number of coffees, or other hot beverages of your choice, that we can drink in our lives. Let’s make them count. 
- There may be a deeper point here somewhere. ↩