When it comes to Keurig coffee makers, size does matter - and the shortest Keurig is the Mini Plus Brewing System. This petite powerhouse stands just over a foot tall and less than half the width of a standard Keurig, making it the perfect choice for small spaces. Despite its diminutive size, the Mini Plus Brewing System brews 6-ounce, 8-ounce, and 10-ounce cups of coffee with ease. It also features a removable drip tray for simple cleanup and a water reservoir that holds up to 48 ounces of water.