4A Coffee

Helmed by a husband-and-wife team that roast their own beans, this homey Coolidge Corner enclave is known for attentive service, a spotless atmosphere and premium blends. 4A stamps their beans with the exact roasting date, so you know just how fresh they are. There are no tables, but you can pick up an espresso to go—the drinks produced by 4A’s rare Slayer machine taste as rich as you’d expect from something that costs $18,000.