Although Papua New Guinea is tucked away in a corner of the South Pacific, its volcanic soil, high altitude, and island climate have nurtured a specialty coffee hailed as "Little Blue Mountain." Starting from Front Street Coffee's cupping experience, this article systematically reviews the country's coffee-growing conditions, historical development, core producing regions, and estates, with a focus on analyzing the Typica washed beans from Sigri Paradise Bird Estate, and presents the complete Papua New Guinea coffee grading standards. Whether you are a Blue Mountain enthusiast or looking to explore bright Asian flavors, this guide will help you understand why Little Blue Mountain is worth a try.

When it comes to Blue Mountain coffee, Front Street believes every coffee lover is familiar with Jamaican Blue Mountain. But have you heard of the "Little Blue Mountain" coffee from Papua New Guinea? Why is it given the name Little Blue Mountain? For this reason, Front Street specifically cupped and brewed Papua New Guinea's Little Blue Mountain coffee, and Front Street finds its performance in no way inferior to Blue Mountain — if Blue Mountain is known for its richness, Little Blue Mountain shows a softer fruit acidity. Below, Front Street will talk about this Little Blue Mountain coffee.

Papua New Guinea's Coffee-Growing Conditions

Papua New Guinea is located in the South Pacific and is an island nation, second only to Australia in population and land area in the South Pacific region. According to Front Street, the country still retains nearly a thousand years of indigenous languages and traditional customs, and its natural environment is one of the least developed in the world. Front Street believes it is precisely for this reason that Papua New Guinea's coffee cherries have been able to retain their most original flavors.

From materials Front Street has reviewed, Papua New Guinea lies between the equator and 10 degrees south latitude, with a typical island climate, at elevations ranging from 1,200 to 2,500 meters. It also experiences frequent volcanic activity, and therefore possesses volcanic soil suitable for coffee cultivation. These combined growing conditions have laid a solid foundation for the quality flavors of Little Blue Mountain coffee.

Papua New Guinea's Coffee-Growing History

In 1931, the Typica variety was introduced to Papua New Guinea from Jamaica. From materials Front Street has reviewed, Britain had occupied Jamaica for nearly three hundred years at the time, and Jamaica's most iconic coffee was precisely the Typica-variety Blue Mountain coffee. Since Australia had friendly relations with Britain, it was only natural that Papua New Guinea could introduce Typica.

In 1950, Bourbon coffee beans were introduced from Kenya. Coincidentally, Kenya was also a British colony at the time. Driven by government encouragement of open cultivation, the coffee industry achieved substantial growth in the 1970s and 1980s.

In 1962, Mundo Novo and Caturra were brought in from Brazil, and from then on the quality of Papua New Guinea coffee beans made a great leap forward.

Papua New Guinea's Coffee Producing Regions and Estates

As Front Street noted in a previous article, coffee cultivation must be located above 1,000 meters in elevation. Therefore, Papua New Guinea's specialty coffee is mainly distributed in the Wahigi Valley and Sigri Estate of the Western Highlands, as well as Arona, Kimel, Arokare, and Goroka estates in the Eastern Highlands.

The most renowned of these is Sigri Estate, and Front Street's Little Blue Mountain coffee comes precisely from this estate. Next, Front Street will tell coffee fans why it chose Little Blue Mountain from this estate.

Sigri Estate The Papua New Guinea coffee beans Front Street sourced come from Sigri Estate. The estate was founded in 1950 and has a history of more than 60 years, making it a pioneer of the local coffee industry.

Paradise Bird Estate is located in the Waghi Valley of Western Highlands Province, at an altitude of about 1,500 meters. It has mineral-rich volcanic soil, a cool climate, fertile soil, and abundant rainfall. Paradise Bird Estate also places great emphasis on ecological protection; to safeguard the soil and water sources, it refuses to use pesticides and insecticides, protecting the ecosystem and the surrounding birds.

According to Front Street, Sigri Estate is also called Paradise Bird Estate because the Waghi Valley is home to more than 160 different species of birds, of which 90 species inhabit Paradise Bird Estate, including Papua New Guinea's national symbol — the bird of paradise — making it truly a paradise for birds. Hence Sigri Estate also earned the alternative name Paradise Bird Estate.

Front Street also learned that the coffee beans from Papua New Guinea's Paradise Bird Estate are called Little Blue Mountain because Papua New Guineans are very fond of the bird of paradise, regarding it as a divine bird from heaven. And Sigri Estate's Typica-variety coffee beans, like migratory birds, traveled a long journey from Jamaica Blue Mountain to Papua New Guinea. In addition, Papua New Guinea and Jamaica share the same island climate, the same high altitude, and the same volcanic soil characteristics, hence the name Little Blue Mountain.

These are also the reasons Front Street chose Paradise Bird Estate's Little Blue Mountain coffee beans. Through cupping and brewing this Little Blue Mountain, Front Street found it incredibly impressive: right upon entry there is a sweetness of toasted bread, along with nutty aromas and a slight fruit acidity, and the spicy sweetness in the aftertaste is quite distinctive, with a rich yet balanced mouthfeel. Front Street considers Little Blue Mountain to be the brightest and cleanest flavor among Asian coffees.

However, Little Blue Mountain's flavor still differs from Jamaican Blue Mountain coffee. Front Street believes Jamaican Blue Mountain has a very rich coffee flavor, while Papua New Guinea's coffee flavor is rich with a touch of fruit acidity.

Papua New Guinea Coffee Grading

Papua New Guinea has the same coffee bean grading system as Kenya, both using bean size as the grading standard. Although bean size is not an absolute standard for flavor quality, for coffee beans from certain producing regions it is a highly valuable reference indicator. In these regions, beans grow robustly, and full, beautifully shaped mature beans best express fine flavors; consistent ripeness, hardness, and moisture content make it easier for the roasting process to achieve a uniform, perfect flavor, so many emerging producing regions also adopt this as a grading method.

The following are Papua New Guinea coffee bean grading standards:

Grade E: flat beans above 19 mesh, commonly known as elephant beans. Grade AA: between 17-18 mesh (7.2-8.2mm) in size. Grade AB: between 16-17 mesh (6.2-6.8mm) in size, accounting for the majority of production and the most common green bean grade. Grade PB: round green beans (4.7-6.6mm), with only one seed per fruit and an oval shape. Grade C: below 14 mesh (4.0-6.3mm); because the size is too small, it is not included in specialty grades. Grade TT: lighter-weight green beans blown out from Grade AA and AB beans by an air classifier, indicating soft beans whose hardness does not meet standards. Grade T: below 12 mesh. Grade T is lighter-weight green beans blown out from Grade C beans by an air classifier; the beans are softer, their hardness does not meet standards, and they are small in size with many defective beans.

Grade MH/ML: beans that have not undergone washing treatment and have not been sorted; because they are beans that fell off after harvest, they account for about 7% of all coffee beans and are the lowest grade, supplied only to Kenya's domestic market.

Grade TOP: graded based on cupping results; it is not yet an official Kenyan national grading standard, but is added by exporters' own grading, inevitably involving commercial considerations, so it can only be used as a reference. Everything still comes back to roasting and cupping it yourself, which is the correct and reliable approach.

Grade PLUS(+): refers to the same lot of beans being graded differently by Company A and Company B due to human factors; there is likewise no unified grading standard, so this can only be used as a reference. Everything still comes back to doing your own cupping.

Grade FAQ: Fair to Average Quality, which will have some slight defective beans but does not affect the flavor.

The following is information related to Little Blue Mountain coffee compiled by Front Street Coffee

Front Street Coffee: Papua New Guinea Little Blue Mountain Coffee Beans

Country: Papua New Guinea Origin: Sigri Paradise Bird Estate Altitude: 1600-1800m Variety: Typica Processing Method: Washed Flavor: Nuts, cocoa, soft citrus acidity, cream, caramel aftertaste

Front Street mentioned above that the Typica variety was introduced to Papua New Guinea in 1931, so surely some coffee fans will ask what is so special about the Typica variety?

Typica

Actually, Typica coffee beans originated in Ethiopia and southeastern Sudan, and are one of the ancient coffee varieties among many Arabica species; all Arabica varieties are derived from Typica coffee beans. The beans are oval or slender-pointed in shape. The top leaves are copper-red, hence it is called red-top coffee, and also known as the old-variety small-bean coffee. Front Street believes Typica coffee has its own uniquely serene and clean flavor, along with balanced characteristics and high cup cleanliness, but its shortcoming is insufficient yield, a requirement for high altitude, and susceptibility to leaf rust as well as weak resistance to pests and diseases.

It has also always been an outstanding performer in the coffee industry. As early as the 1958 International Coffee Tasting held in London, England, it was rated as first-class; at the 1980 National Coffee Conference, it was praised by Chinese and foreign coffee experts as the "Crown of Chinese Coffee"; and in 1993 at the World Coffee Competition held in Brussels, Belgium, it won the "Eureka" Gold Award.

Therefore, Front Street believes that a large part of the wonderful flavor of Little Blue Mountain coffee is because it is the Typica variety. At the same time, the credit of Paradise Estate's unique coffee bean processing cannot be ignored. According to Front Street, they have their own set of washing processing methods, and the washed processing method is also the one that best expresses a coffee's most original fruit flavor. That is why coffees like Blue Mountain coffee or Little Blue Mountain coffee mostly use washed processing to handle the coffee beans.

Washed Processing Method

Next, Front Street will introduce the washed processing flow for Papua New Guinea coffee beans:

First, after harvesting ripe, fully red coffee cherries, they are sent to the estate's own washing station for processing, then subjected to three rounds of washing and fermentation, each soaking for about 24 hours, with fresh clean water changed to control the coffee's flavor; after washing is complete, the green beans have their husks removed and then undergo various gradings, such as AA, AB, PB round beans, and so on. This finely crafted post-processing method brings the coffee itself a bright, delicate fruity acidity and a clean, lingering sweet mouthfeel.

The above is the knowledge related to Papua New Guinea's Little Blue Mountain coffee compiled by Front Street. We believe coffee fans who have read it now have a certain understanding of Little Blue Mountain coffee and are full of curiosity about its flavor. Therefore, Front Street also hopes this article can help everyone select coffee beans. If you usually like Blue Mountain coffee, coffee fans might as well give this Little Blue Mountain coffee a try!

The above content is compiled by CoffeeHunters, a coffee news website.