Nearly every step in the coffee-making process from plant to pour makes a difference in the flavor and caffeine content. Caffeine, in general, has been shown to have positive effects on alertness, focus, endurance, and memory, not to mention helping to stave off Alzheimer's and reducting liver cancer and heart disease. Of course, too much coffee can cause health issues (we're talking to those of your who are drinking half a dozen cups a day), in no small part because of the caffeine. But if you're having one or two cups, why not make them strong? Here, Kevin Sinnott, author of The Art and Craft of Coffee, guides us through how to control the caffeine in your cup while still getting great flavor.
If you are truly committed to coffee, Sinnot recommends splurging on the best grinder money can buy. Just as with food, you want your coffee grounds to end up uniform because you want all of it to cook the same way. How fine you should grind depends on your brewing method and will take some experimenting. A finer grind runs the risk of being too bitter, a coarse one can lack flavor. If you're brewing more than usual, you'll want to have coarser grounds because they'll filter more slowly. In terms of caffeine (if everything else is the same) finer grinds will give you more.
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