Keurig K-Crema Coffee Maker vs Ninja PB051 Single-Serve Coffee Maker

Buy the Ninja PB051 if you want one machine that brews both pods and ground coffee, makes larger travel-mug cups, and can froth milk for lattes. Buy the Keurig K-Crema if you mainly drink K-Cup pods and want espresso-style shots with a crema top. The Ninja is the more versatile brewer, with a built-in frother and a permanent filter. The Keurig is simpler and locks you into pods, since it does not take a reusable filter. Owners of both lines praise the convenience; the common complaint about the Ninja is that its pod side is limited to 12 oz, and about the Keurig that it cannot brew grounds.

• Choose the Keurig K-Crema if you drink mostly K-Cup pods and want espresso-style shots and a crema-style top without a separate machine.
• Choose the Ninja PB051 if you want pods and ground coffee in one brewer, cups up to 24 oz, and a built-in frother for milk drinks.