Domestic electrification simplified the operation of percolators by providing for a self-contained, electrically powered heating element that removed the need to use a stovetop burner. A critical element in the success of the electric coffee maker was the creation of safe and secure fuses and heating elements. In an article in House Furnishing Review, May 1915, Lewis Stephenson of Landers, Frary and Clark described a modular safety plug being used in his company's Universal appliances, and the advent of numerous patents and innovations in temperature control and circuit breakers provided for the success of many new percolator and vacuum models. While early percolators had utilized all-glass construction (prized for maintaining purity of flavor), most percolators made from the 1930s were constructed of metal, especially aluminum and nickel-plated copper.
Our top pick is the OXO On 12-Cup Coffee Brewing System. It’s a large machine – both in footprint and in capacity — but it earned the second-highest scores in our taste test, and is sleek both to look at and to operate. Convenient features like programmable auto-brewing, a removable water reservoir that doubles as a kettle, and a spigot that stops the brew mid-stream if you remove the carafe make this machine feel high tech without being high maintenance. For those who want to be a little more hands-on with the brewing process, its single-button dial also lets you adjust the water’s brewing temperature, giving you more access to experiment with extraction and flavor.
It’s obvious, but easy to forget: If you don’t clean out your coffee machine’s carafe after each use with soap and water, you’ll always end up tasting a little bit of yesterday’s now-bitter brew. Thermal carafes need to be hand-washed, but all the plastic components of our top picks — brew baskets, lids, etc. — are dishwasher-safe if you keep them on the top rack.
The Mr. Coffee brand of coffee makers is a straightforward machine that is affordable. If you want something with more power that will consistently make a fantastic cup of coffee, consider the Zojirushi coffee maker with four warming plate settings that will let you make iced as well as hot coffee. Not only that, but it's a coffee maker that makes a statement on your counter.
“I purchased the machine for myself as a birthday present, and I’ve had it for about six weeks. We have a Pavoni espresso machine, which my husband loves for his espressos, but I think it’s a pain for making lattes: grinding the beans, tamping down the pod, ‘pulling’ the lever (which will be really hard if you tamp it too densely), steaming the milk, and then cleaning the steaming wand, not to mention what a pain it is to refill the water chamber (turn off, wait till pressure is gone, then you can refill). Why am I listing all of these steps? Because that’s what you don’t have to worry about with the Lattissima! Here are my steps now: Turn on the machine, get the milk container out of the fridge and plug it into the front, put an espresso capsule in the top, stick a mug under the spout, and push the Latte button. Done. You do need to clean the frother, which is just putting another cup under the spout, turn the milk to “clean” and let it clean, then you can remove the milk container and stick it in the fridge. I clean the milk container once a week, soaking all the pieces in a bowl of hot, soapy water for a few hours.”
CR’s take: Though this Bialetti lacks typical drip-machine features such as programming and brew-strength control, it more than compensates with a Very Good rating in our brew performance test and a crisp 8-minute brew time. If you’re the type who sometimes prefers a morning shot of espresso to a cup of joe, this twofer—drip machine beside espresso maker—may be for you. It features a built-in milk frother, a permanent coffee filter, and auto-shutoff. CR does not yet have enough survey data on Bialetti machines to rate them on reliability and satisfaction, but when we do, we’ll add that info to our ratings.