The baristas at Slate are total connoisseurs—from the source of the beans to the grinding process to the water quality, they’re obsessed with every detail of the coffee-making process. What’s more, they’re extraordinarily friendly and happy to give you a full education on the current (generally always light) roast. While the original Ballard location has Wifi, the tiny space can get pretty crowded: The newer University and Pioneer Square locations are better suited for working.

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