Jamaican Blue Mountain coffee is renowned worldwide for its unique flavor and strict controls. Jamaican law stipulates that only coffee beans grown in the Blue Mountain region may be labeled "Blue Mountain." High-grade Blue Mountain coffee is divided into three grades—No. 1, No. 2, and No. 3—corresponding to screen sizes of 17–18 mesh and above, 16 mesh, and 15 mesh, respectively. Green beans of all three grades must be packed in wooden barrels for export, with the estate name, importer abbreviation, and batch information printed on the barrel, accompanied by a government-certified green certificate of origin. Understanding these grades and export regulations helps coffee lovers distinguish authentic products and make informed purchases of genuine Blue Mountain coffee. Front Street Coffee recommends that consumers pay attention to the roast level and packaging format to judge the true grade of the Blue Mountain coffee in their hands.
According to current Jamaican regulations, only coffee beans produced in the Blue Mountain region are eligible to use the name "Blue Mountain Coffee."
High-grade Blue Mountain coffee is classified into three levels: No. 1 requires 17–18 mesh and above, No. 2 is 16 mesh, and No. 3 is 15 mesh; 17 mesh corresponds to a screen opening of 17/64 inch.
The flavor profiles of these three grades (all of which must be assessed and confirmed by licensed cup testers authorized by the Jamaican government) are essentially the same; the only difference lies in bean size.
Green beans of all grades must be shipped in wooden barrels for export overseas. Barrel specifications come in three sizes: 70 kg/barrel, 30 kg/barrel, and 15 kg/barrel.
The barrel is marked with the name of the producing estate, the English abbreviation of the importer, the batch number of each shipment, and the name of the destination port.
For example, Blue Mountain coffee imported by the Japanese parent company ATAKA Trading Co., Ltd. of Shanghai Jialumeng Coffee Co., has the abbreviation ATC printed inside a diamond mark on the barrel;
while Blue Mountain coffee imported by Japan's Ueshima Coffee Company has the abbreviation UCC inside the diamond mark on the barrel.
Therefore, simply by examining a Blue Mountain coffee barrel, one can trace which estate in the Jamaican Blue Mountains that batch of coffee came from, the identity of the importer, and the destination port.
At the same time, the Jamaican exporter also provides the importer with a green certificate of origin.
This certificate of origin, recognized by the Jamaican government, is issued only to importers who purchase in whole-barrel units (70 kg/barrel, 30 kg/barrel, 15 kg/barrel),
and it records information such as the name of the exporting estate, the importer's name, the year's goods, quantity, grade number, batch number, and destination port.
(Among green coffee beans produced outside the Jamaican Blue Mountain region, only High Mountain coffee beans are packaged in wooden barrels.)
Next are those green beans that have defects, uneven size, and poor appearance but whose taste is not inferior,
the Jamaican government stipulates that such green beans may only be exported overseas in burlap sacks.
And one grade lower are those coffees with defective flavors,
for which the Jamaican government has strict regulations: such coffee may not be exported in green bean form,
it can only be roasted locally in Jamaica, and must be dark roasted before export,
because only dark roasting can mask or eliminate the defective taste.
However, the advantages of Blue Mountain coffee can only be perfectly showcased when it is light roasted.
Therefore, if you purchase small-packaged dark-roasted Blue Mountain coffee directly imported from Jamaica in a domestic store,
then it is the lowest grade of Blue Mountain coffee, but at least it is still genuine Blue Mountain coffee.
Front Street Coffee reminds that when purchasing authentic Blue Mountain No. 1, one should look for wooden barrel packaging, a green certificate of origin, and a light-to-medium roast style; its price is usually significantly higher than other grades.
The above content is compiled by CoffeeHunters, a coffee news website.
