Archive for October, 2009
Hard Water Makes for Bad Coffee
Early one morning last month, I woke up begrudgingly and trudged to the kitchen with my eyelids still fluttering closed. As was my custom just before work, I planned to enjoy an invigorating espresso shot or two. Without my morning coffee, I’m basically a zombie; I can hardly function, and my work definitely suffers. Unfortunately, I took one sip of my freshly pulled espresso and spit it right into the sink.
It turned out that my home’s hard water problem had extended beyond just creating a frustrating shower experience. Calcium deposits had built up in the boiler of my espresso machine, affecting the taste and obstructing the brewing process. The machine was in perfect working order; it just needed to be decalcified. I found an appropriate descaler, and ever since I’ve been cleaning the machine on a monthly basis.
‘C’ in Coffee Part 3 of 3
COWBOY COFFEE: Ground coffee steeped in hot water then strained to separate rounds from brew. Legend has it that the separation method often called for a clean sock into which the ground coffee was spooned before being immersed in water. (Also called hobo, campfire or open-pot coffee.)
CHLOROGENIC ACID: One of the principal acids in green coffee beans, unpleasantly astringent by itself. As the roast progresses much of the chlorogenic acid disappears and other flavourful acids form, more thank making up for its loss.
CINNAMON ROAST: The lightest roast commercially available, with no oil on the surface. Large manufacturers often incorporate very light roasted coffee into their b lends, because roasting for a short time both saves money and adds bulk. A cinnamon roast rarely appears in specialty shops, though, because it is so high in chlorogenic acid and low in body and flavour.
CITY ROAST: A roasting term controversial for its impression but in wide use. Today a city roast is barely darker than a cinnamon roast. “Full –city” is used for a l medium roast, more or less dark cinnamon in color and with no oil on the surface; this is the fullest development of a bean before oils appear. The next stage is usually called a Vienna roast.
CLEAN CUP: A term professional tasters use to indicate a brewed coffee that is free, of virtually free, of taste defects. A clean coffee is not the same as a great coffee, but it will bring the grower or broker a higher price.
CREMA: A golden foam made up of oil and colloids, which floats atop the surface of a perfectly brewed cup of espresso. Achieving crema depends on a number of factors, including kind of coffee used, its freshness and the degree of pressure used in brewing; achieving it is tricky when not using a professional espresso machine.
CUPPING: The process by which professional tasters evaluate a sample of beans, Roasted and ground coffee is steeped in hot water, like tea, and the liquid is stasted both warm and as it cools.
Storing Coffee for Optimal Freshness

For many years my wife and I bought our coffee beans in bulk. We both delight in taking the time to grind and brew our gourmet coffee, but we started to notice that toward the end of the bag the beans started to taste a bit off. That led me to do some research on coffee storage. How should the beans be stored, I wondered – in their raw, green form, or roasted? Left whole or ground? Frozen or at room temperature?
It didn’t take long to discover that fresh roasted coffee beans store best, and they should be kept whole until just before consumption. Most beans will retain their freshness for up to two weeks when stored at room temperature provided that they’re kept in an airtight container. When storing your own beans, bear in mind that they create excess carbon dioxide. Open up the lid of the coffee periodically to allow this gas to disperse.
CAFFEINE: The chief mood altering substance in coffee, with an average of 1.1 percent in Arabica and 2.2 percent in Robusta beans, the tow main coffee species. When extracted, as in the decaffeination process, caffeine is a pure white crystal, bitter to taste. Caffeine is the world’s most widely used psychoactive drug, appearing naurallin in tea leaves and, in very small quantities in cocoa beans.
CAFFEINE WITHDRAWL: Not yet an official diagnosis, but a syndrome currently under research for possible inclusion in psychiatric manuals . its symptoms include headache, sleepiness or drowsiness, impaired concentration, difficulty working, precession, anxiety, irritability, nausea and vomiting, and muscle aches or stiffness.
CAPPUCCINO: A espresso based drink classically made with one third espresso steamed milk and one third foamed milk. The king of Italian espresso drinks.
CARAMELIZATION: Beans are naturally high in carbohydrates, which must be heated to develop toasty, sweat flavours. Caramelized sugars give body and mouth-feel to darker roast: the darker the bean, the higher the degree of caramelization. When caramelization is taken to far, coffee tastes burnt.
CEZEV: More commonly called an ibrik, this is the correct term for the long handled brass or copper pot, tinned on the interior that lopes inward at the top and is used to make Middle Eastern coffee.
CHERRY: Coffee beans are seeds of a berry, called cherry for the shape and for the deep crimson color of the fully ripe fruit. The even, ovoid shape resembles a plump holly berry or cranberry.
‘C’ in Coffee Part 1 of 3
CAFÉ au LAIT: A French breakfast drink made up about one third strong brewed coffee, as in coffee for a café filter or Napolitana pot or the stovetop moka brewer, and two-thirds scalded or steamed milk. Virtually identical to the Italian family version of a caffé latte.
CAFÉ FILTER: The metal flip-drip pot not more commonly called by its Italian name, Neapolitana, used in French households. The Italians like to claim credit for it, but in fact the French invented the device I the early nineteenth century.
CAFÉ AMERICANO: In Italy, usually a thin drink made with instant coffee. In America, an espresso lengthened with plain hot water after brewing (not by brewing for a long time), so that the body is the same as that of a filter brewed coffee, A good way to spread out the taste of espresso over a longer sipping time without adding cups of milk.
CAFFÉ LATTÉ: In Italy (where it is spelled caffe latte), this is a family drink made in the morning with coffee brewed in the napoletana or moka and milk scalded on the stove, in proportion of 1 part coffee to 3 parts milk. Italian espresso bars use genuine espresso and sometimes add more steamed milk, but not as much as is used in the United States. Also, Italians don’t add foamed milk, as Americans usually do. The drink served as a “latte” in American coffee bars is really giant sized cappuccino.
CAFFÉ MACCHIATO: An espresso “stained” with about two tablespoons of foamed milk.
The benefits of Coffee
If you love coffee, here’s some of the latest good news.
• A study of 90,000 Japanese by the National Cancer Center in Tokyo found that people who drank one to four cups of coffee daily had half the liver cancer risk of those who never drank coffee. Researchers aren’t sure why, but they speculate that antioxidants may play a role.
• A study by researchers at the Harvard School of Public Health that followed more than 125,000 men and women for more than a decade found that regular coffee drinkers had a significantly lower risk of developing type 2 (or late-onset) diabetes. Studies in Sweden and Finland also concluded that coffee consumption offers protection from type 2 diabetes. Again, researchers aren’t sure why.
• A half-dozen recent international studies showed a positive relationship between drinking caffeinated beverages — including coffee — and lower rates of Parkinson’s disease and Alzheimer’s disease.
• Other research links coffee consumption with reduced risk of cirrhosis of the liver, colon cancer and asthma.
• A cup or two of coffee can improve endurance in activities such as running, cycling and swimming, according to other research. Coffee has a strong ergogenic effect, meaning it helps people work harder and longer, explains Lawrence Spriet, an exercise physiologist at the University of Guelph who has researched the effects of caffeine on athletic performance for more than a decade. “Even small amounts of caffeine can be quite powerful,” he says.


