Thursday, January 29, 2009

The Coffee Plant (or Tree or Bush)


If you've ever wondered where exactly coffee comes from, we are today starting a series of posts about the origins of the bean that produces the drink consumed by most adults, and its journey from bush to brew.

Coffee is grown as a tree or bush, which resembles a camellia bush with jasmine-like blooms. In the wild, the evergreen arabica plant grows up to 20 feet, however, when cultivated is pruned to approximately 6 feet to maximize its yield and to make harvest easier.

Coffea arabica
is not the only type of plant used to produce coffee; Coffea robusta is another species commonly used (common being an apt term since most robusta is not typically considered high quality enough to produce gourmet coffee; it is used to produce lower-quality coffee such as brands produced on a very large scale and sold at many supermarkets). One exception is the Kopi Lowak coffee, which is a very unusual gourmet robusta coffee "processed" by the Asian Palm Civet, a cat-sized mammal found in southeast Asia. This coffee retails for well over $120 US per pound.

There are several varietals of Coffea arabica, including C. arabica typica, C. arabica bourbon, C. arabica caturra, and C. arabica catuai. The typica is the base plant for many other varietals, produces a small amount of coffee cherries, but yields an excellent cup of coffee. The bourbon is named for the Isle of Bourbon (or Reunion Island) where it was discovered. This variety has a higher yield of fruit but produces less coffee, since each cherry is denser and more likely to fall off from wind and rain. This variety does well at higher altitudes. The caturra is a mutation of the bourbon, discovered in Brazil. It has performs well at lower altitudes but though it yields fewer cherries at higher altitudes, the quality increases. The catuai is a hand-engineered hybrid of the Mundo Novo (a natural hybrid of typica and bourbon discovered in Brazil) and the caturra. This is a high yielding plant that is great for areas with strong winds or rain because the cherries more stubbornly stay on the branches.

The last two varietals are highly prized in the specialty gourmet coffee market. These are the Maragogype and the Blue Mountain. A natural mutation of the typica plant, the maragogype produces a very large bean, to which it credits its name - the "elephant bean." It was first discovered in in the early 1990's. Blue Mountain is a famous varietal that thrives at very high altitudes and is very disease resistant. It produces a bean with a very high flavor profile, and was first grown in Jamaica. It has now adapted to grow well in Kona, Hawaii, but cannot adapt to most growing areas and produce the high quality bean for which it is known.

For more information, check out Wikipedia or CoffeeResearch.org

Wednesday, January 28, 2009

Keeping your Awesome Coffee FRESH!


Our best tips for the freshest coffee? Purchase the freshest beans available in whole bean form (this minimizes surface area exposed to oxygen) in a bag with a one-way valve. This will require the use of a home grinder just before brewing.

The ideal way to store the coffee beans once the bag has been opened is in a sealed glass jar, preferably one that does not allow sunlight to permeate. A less expensive option, and an even more efficient one, is to use a Ziploc! Simply press air out before sealing and storing away from direct sunlight.

Another important tip: never freeze your beans! Freezing and then thawing disrupts the moisture balance in the bean and will not prolong the life of your coffee.

Tuesday, January 27, 2009

Fresh is Best!

Freshness is crucial to the experience of high quality coffee. "Fresh is Best!" is truly a mantra to be lived by in the world of coffee. Despite this fact, more than 90% of all coffee sold in the U.S. is already stale. (!!!) Until you have tasted truly freshly-roasted coffee, you would not know the difference! Many people who drink their coffee with lots of cream and sugar are trying to "dress up" a poor quality cup.

Why does so much coffee on the market not taste very good? Exposure to oxygen over time causes deterioration of aroma, flavor, body, and complexity - all the qualities one drinks coffee to enjoy! If stored in bins or other containers with air, the roasted beans begin to stale after as little as two weeks. Aroma and acidity are quickly lost, while flavor still remains. Between four & six weeks after roasting, even a noble bean roasted with the most delicate precision has become a mere shadow of its former self.

After roasting, beans produce more than three times their volume in carbon dioxide, thus making packaging in cans or other solid containers impractical...unless you let it fully de-gas for several days or weeks before packaging...in which case it cannot be truly fresh! This problem was solved more than 30 years ago, when the one-way valve was invented. This valve can be laminated into an oxygen-impermeable material, so that carbon dioxide could be released without allowing oxygen to reach the coffee and destroy its virtues. This extends the life of roasted coffee beans and allows for immediate shipping. The best cup of coffee results from grinding and brewing beans as soon as possible after the 24-48 hours of degassing which occurs after roasting.

We bag our coffee by hand in this type of packaging immediately after roasting to minimize contact with oxygen. Ask your favorite coffee shop or mail-order supplier about how they preserve the freshness of their product! You may be surprised by the answers...

First Blog Post for Ashley & Cooper's The Coffee Blog

O! exciting day! 'Tis the launch of The Coffee Blog, where the truth about specialty coffee may radiate throughout the land. We welcome your comments and questions!