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Miele CM6310 Countertop Coffee System review:

Delicious automatic espresso -- if you're willing to put in the work

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The Good The Miele CM6310 Countertop Coffee System makes the best-tasting espresso we've tasted from a fully automatic home machine and costs less than competing products. The appliance can use milk either from its own flask or straight from the carton. A double-portion feature also lets you make two drinks simultaneously with just one button press.

The Bad Unfortunately the Miele CM6310 Countertop Coffee System is saddled with a wobbly, cheap-feeling water tank. In addition, it takes time to tweak the espresso machine's confusing settings properly.

The Bottom Line If you value delicious espresso above all and prefer not to work too hard for it, save for navigating clunky settings menus, than the Miele CM6310 Countertop Coffee System is a blend of kitchen appliance and java robot that's hard to resist.

CNET Editors' Rating

7.3 Overall
  • Performance 9.0
  • Design 6.0
  • Features 7.5
  • Maintenance 5.0

A cool two grand is a lot to spend on any kitchen gadget let alone a home espresso machine, but if you can justify the splurge, then strongly consider the $2,000 Miele CM6310 Countertop Coffee System (£1,299.00; AU$1,599). This coffeemaker creates the most flavorful espresso I've tasted from any superautomatic machine I've tested to date, including the more expensive Krups EA9010 ($2,500) and Philips Saeco GranBaristo Avanti ($3,000). The Miele CM6310 features a handy double-portion mode too, enabling it to prepare a pair of fancy coffee drinks with just one button press.

Like any advanced appliance though, the CM6310 isn't without some missteps. Most notably, its controls are often confusing, and its settings menus are painful to navigate. And despite its high price, the coffeemaker comes with a wobbly water tank constructed from thin, cheap-feeling plastic. Still, if you have the patience to tolerate its quirks, the Miele CM6310 rewards with mightily delicious espresso for hundreds less than its closest superautomatic competition.

Design and features

While the Miele CM6310 Countertop Coffee system will set you back quite a bit of cash, it does offer quite a bit of convenience. This machine is one of the few to qualify as what's called a superautomatic espresso maker. Essentially an appliance like this functions more akin to a robotic barista than a manual or semiautomatic espresso product, and is able to fashion complex cafe drinks from whole bean to steaming cup on its own.

Measuring 14 inches tall by 10 inches wide and reaching a depth of 17 inches, the Miele CM6310 occupies about as much counter space as two ordinary drip coffee makers stacked side by side. Still, the appliance shares an almost identical physical footprint as similar countertop espresso machines such as the Krups EA9010 and Philips Saeco GranBaristo Avanti. Also par for the espresso-maker course is the CM6310's box-like shape, tiny front-facing display clustered around a bank of buttons, twin coffee dispenser nozzles and a wide beverage drip tray below them.

The Miele CM6310 is bigger than drip brewers.

Chris Monroe/CNET

Of course, the Krups EA9010 has a larger touchscreen and pairs it with a very logical, graphically driven user interface. The Miele CM6310's controls on the other hand are anything but intuitive. To the left of the machine's tiny LCD screen are four coffee cup icons meant to represent the most common beverages you'll likely order (espresso, coffee, cappuccino and latte macchiato).

Unfortunately, unlike the menus on the Krups appliance's color display or the GranBristo Avanti's physical keys, these symbols (and the buttons they indicate) are tiny and not labelled. As a result, I found it difficult to tell them apart at first -- or even divine their function -- until I consulted the manual or engaged in some trial and error.

Positioned on the left side of the display is a cursor pad to scroll through the Coffee System's menu screens. Running along the bottom edge of the control panel is a horizontal line of still more cryptic button symbols. Six in all, they control such functions as turning the machine on, view the complete library of drinks, tweak brewing details, and even create personal user profiles.

Symbols for buttons lack text labels.

Chris Monroe/CNET

Though it eats up much of the appliance's left side, you access the CM6310's water tank from its top surface. The tank's plastic lid flips open and extends upward to function as a handle. Be careful though, because the lid and arms are extremely thin, can pop off their hinges easily, and honestly feel as though they might break at any moment. I also found that the tank's narrow base makes the container unstable (whether full or empty). Either at rest or when setting the tank onto a flat surface, the vessel will tip over if you're not mindful. In truth, the best removable water reservoir I've come across graces the semiautomatic Breville Barista Express. It's sturdy, a cinch to open and close, and has proper footing.

On top of the Miele CM6310 you'll find two hatches. One is a lid for the main bean hopper, while the other serves as a door for loading preground coffee into the machine. There's a cup warmer here, too; a rubbery pad meant for resting glasses and ceramic mugs. Miele claims the pad will heat coffee cups correctly in order to bring out maximum flavor from their contents.

Fill the bean hopper.

Chris Monroe/CNET

One of the CM6310's defining features is its insulated stainless steel milk flask. Essentially a metal thermos, the 16.9-ounce container stands alone on the machine's right side and attaches to the main beverage dispenser via a clear, rubbery hose. It supplies dairy for cafe drinks or plain steamed milk. This convenience along with a spout for decanting hot water doesn't come cheap. As far as I can tell, these are the only two features not offered by the CM6310's less-expensive sibling, the $1,500 CM6110 model. Both appliances, however, can draw milk directly from grocery cartons with an included milk tube accessory.

I think the espresso machine's slickest trick is its double-portion mode, also available on the CM6310. Engaged by touching a button icon that vaguely resembles two cups placed in close proximity, when active the brewer will run any recipe from its drink library back to back. That means either two single or one double beverage is just a key tap away.

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