Now, to muddy the waters, when coffee experts talk about a coffee’s “acidity,” they are actually referring to the flavor notes of the brew, not the acid content. A coffee’s acidity is generally used as a term that indicates the quality of the bean. For example, beans grown at high altitude are often described as being acidic due to the bright, vibrant flavor notes they give.
No study we have seen links prepared or brewed coffee, including espresso, with significant levels of contaminants. Typical is a 2008 Australian study which meticulously tested a wide range of coffee beverages purchased randomly in the Australian food service market and found that “there were no detectable levels in any of the coffee [beverages] sampled. This included all 98 pesticide residues, 18 PAHs, beryllium, mercury and ochratoxin A.” The key findings summary concluded that “The overall levels of chemical contaminants identified in this survey are generally considered to be low and are consistent with those reported in other comparable surveys both in Australia and overseas.”
In the case of over half of the Top 30 coffees, distinctive tree variety appears to play an important role in generating an exceptional cup worthy of a high rating. There are stars and superstars among the hundreds of varieties of Arabica grown in the world today, and, whether we want them to or not, coffees from these distinguished varieties frequently dominate the very highest ratings at Coffee Review. They include the still rare and expensive Geisha/Gesha variety (three examples on the 2018 list), the various mainly indigenous varieties grown in Ethiopia (three on the 2018 list), the great SL28 and SL34 varieties of Kenya, and (slightly less distinctive but still likely to impress) the big-beaned varieties Maracaturra (one), Maragogipe (one) and the ancient heirloom Bourbon (four on the 2018 list).

As more and more coffee companies cave to the temptation to adulterate with soy beans sprayed with chemical flavors and questionable trade practices, Equal Exchange may be the last coffee company standing to offer organic whole beans sourced from small producer coops, and roasted at a worker owned facility stateside. The company maintains its commitment to fair trade and supports many worthy causes. I recently had cause to engage in a lengthy discussion with reps at Equal Exchange and consider their inteigrity (and really great tasting coffee!) unsurpassed.
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In order to determine the best coffee beans in the world we will have to journey to where in the world coffee grows. South America dominates coffee plantations. Brazil alone contributes to more than 40 percent of all coffee production worldwide. Optimally, coffee grows between the Tropic of Cancer and the Tropic of Capricorn, in an area known as the coffee belt. Virtually all the coffee beans you purchase will be grown in this region. Even though the coffee beans are harvested in this region, they may be roasted elsewhere. We will cover roasting in the next section.

The second best organic decaf coffee on our list is Caza Trail Coffee. The dark imperial flavors inside actually come from a blend of coffees from Indonesia and Latin America. It has moderate acidity and a well-rounded finish. Caza Trail offers both classic and flavored coffee. Therefore, you can either have a traditional pick me up or take a break and reward yourself with a spiced coffee.