Where Are Arabica Coffee Beans Grown and Why Does Acidity Matter?

Most Papua New Guinea coffee is grown in the highland regions, and Arabica varieties account for about 95 percent of the crop. The country sits on the Pacific Ring of Fire, where volcanic soil supports cultivation. Despite these conditions, PNG supplies only around 0.7 percent of global production, yet coffee supports more than 2 million smallholder families as the highlands' only cash crop.

The main varieties are Bourbon, Arusha, and Mundo Novo, typically washed and then sun-dried. The result is a rich, full-bodied cup with slight acidity, closer to Mandheling in mouthfeel than to brighter origins. The Baroida Estate's Colbran family has farmed here since the 1960s, and the third generation began the Tairora Cherry Project in 2005 to improve transparency with smallholders.

In the Asian market, most consumers prefer a coffee flavor that is not sour but rich and full-bodied, and Papua New Guinea is a potential producing region that combines the solid mouthfeel of Mandheling with low acidity and a clean flavor. This country, located in the volcanic belt of the southwestern Pacific, accounts for only 0.7% of global production, yet supports the livelihoods of more than 2 million smallholder families. Its coffee is mainly 95% Arabica, processed by a method of washed fermentation followed by sun-drying, with major varieties including Bourbon, Arusha, and Mundo Novo. The Colbran family of Baroida Estate has been cultivating this area since the 1960s, and the third-generation operator launched the Tairora Cherry Project in 2005, committed to improving transaction transparency and refining the purchasing process from smallholders. This article will provide an in-depth analysis of the acidity performance of Papua New Guinea coffee, the characteristics of its producing regions, and the varietal composition and quality pursuit of the Tairora Cherry Project.

Asian consumers' preferences for coffee flavor differ noticeably from those of the European and American markets, generally rejecting sourness while resisting bitterness, and especially having low acceptance of acidity. To avoid sourness, many people tend to choose darker-roasted beans. However, an emerging producing region—Papua New Guinea—produces coffee beans that have a rich, full-bodied mouthfeel similar to Mandheling, yet with extremely slight acidity and a clean, crisp flavor expression, making them an ideal choice for people who dislike sourness.

Papua New Guinea is located in the southwestern Pacific, on the Ring of Fire, and its volcanic geology has given the area fertile soil, constituting a key natural endowment for cultivating high-quality coffee.

Despite its superior natural conditions, Papua New Guinea coffee's share of the global market remains not high to this day, at only about 0.7%. Coffee is of great significance to this country; it is the only cash crop in the highland regions, and 40% of the country, more than 2 million smallholder families, depend on coffee beans for their livelihoods, making the coffee industry an extremely important pillar of subsistence.

The vast majority of Papua New Guinea's coffee beans are grown in the highlands, with Arabica varieties accounting for as much as 95%. The processing method is mainly washed fermentation first, followed by sun-drying, and the main cultivated varieties include Bourbon, Arusha, and Mundo Novo.

Several important coffee-producing regions in the country are Eastern Highlands Province, Enga Province, Western Highlands Province, and Chimbu Province, with elevations mostly between 1,200 and 1,900 meters, quite reminiscent of Central American producing regions. The production system is centered on smallholders, with only a few large estates or government-specific support programs. In recent years, Papua New Guinea coffee has gradually gained praise from many enthusiasts, and the key lies in its solid mouthfeel, extremely low acidity, and clean flavor, which precisely match Asians' preferences for coffee, making it a rising Asian coffee origin.

Baroida Estate was founded by Ben Colbran in the 1960s. The Colbran family has long served as collectors and intermediaries for large multinational traders, ensuring that coffee under the direct trade model maintains a stable and high-quality performance.

During the peak harvest season, the fully ripe coffee cherries picked that day are immediately sent to the washing station at Baroida Estate. After the coffee cherries complete sorting and quality inspection, the smallholders can receive payment right away. The estate then begins a series of processing steps: depulping, fermentation, washing, drying, and so on.

The Colbran family has now passed down to the third generation, jointly managed by Ben's son Nickel and grandson Chris. They not only operate the estate but also purchase coffee cherries from various estates and independent smallholders.

In 2005, Chris launched the Tairora Cherry Project, aimed at improving transaction transparency and refining the purchasing process with neighboring smallholders. The Tairora Cherry Project is a blend of four varieties, covering Typica, Arusha, Bourbon, and Caturra. These beans come from every corner of the villages, and since Tairora is the largest tribe in the region, Chris named it after them, symbolizing all the people in the area who contribute to coffee.

In early 2010, MTC (a well-known Australian specialty coffee importing trader) began cooperating with the Colbran family, with the goal of bypassing the major multinational traders and focusing on discovering those unique, small-lot specialty coffees. Each season, the Colbran family reviews the smallholders they work with and purchases the finest coffee cherries in the region one by one. Over these 50 years of collaboration with various estates and smallholders, the Colbran family has not only provided assistance with expansion and operations, but in recent years has also built roads, bridges, schools, and driveways. The Colbran family is both the estate where residents of the Lamari Valley sell their coffee cherries and an object of reverence in the hearts of local people.

Front Street Coffee recommends coffee beans from the Tairora Cherry Project in Papua New Guinea, suitable for coffee lovers who prefer low acidity and a solid mouthfeel.

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