Some lovely art atop your latte’s foam: a perk of frequenting a fancy cafe. But a new machine called the Ripple promises to make it commonplace at any coffee shop—and the foam can spell out any ...

The best coffee machines are on standby to deliver barista-quality brews from the comfort of your kitchen. For those of us who can’t go a day without a cup (or three) of coffee, a pod or bean-to-cup ...