Hartmann Manor Wine Processing Method: Flavor Profile, Growing Information, and Characteristics

This lot is a red wine-processed Caturra. From the moment it is ground, it releases an extremely rich fruit-wine aroma laced with fresh smoked-wood spice. Combined with the berry sweetness and fragrance typical of natural processing, the aroma alone is intoxicating. On tasting, it opens into rich tropical fruit — like a cocktail carefully blended from passion fruit, mango, orange, and berry juice alongside peach wine. No, this is a cocktail from nature itself.

Among all the coffee-growing regions on Earth, this is one of the very few successful experiments with wine-like processing. After years of testing, the method can at last control the acid structure in coffee. Coffee fermented this way gains markedly more sweetness, cleanliness, and a multi-layered yet elegant acidity. The approach greatly improves both the quality and the distinctiveness of the coffee.

The wine processing method is also called controlled fermentation, or lactic/acetic acid fermentation.

The experimental team is led by American Felipe Sardi and made up of biological scientists and ecologists. They apply solar energy and other technologies to cultivation and green-bean processing.

A dedicated hand-picking team is trained and strictly follows specialty coffee picking requirements: unripe fruit below 2%, defective beans below 3%, and floaters below 5%.

Acetic Acid Fermentation — Aerobic Fermentation

Lactic Acid Fermentation — Anaerobic Fermentation

Expected Flavor Profiles:

Acetic Acid Fermentation: Cleaner, lively acidity, brighter acid quality, citric acid

Lactic Acid Fermentation: More rounded mouthfeel, slightly less clean than acetic acid fermentation, higher body, malic/tartaric acid

Previously, processing plants used traditional manual methods passed down through generations, such as biting a bean to gauge the fermentation level. That approach was uncontrollable and inconsistent.

The controlled fermentation method uses pH monitoring to track fermentation, delivering predictable results and consistent quality from batch to batch.

Caturra is a single-gene variant of Bourbon, discovered in Brazil in 1937. Both its yield and disease resistance beat Bourbon's, and the plant is shorter, which makes harvesting easier. Unfortunately, like Bourbon, it suffers from biennial production cycles. It is highly adaptable, though, and needs no shade trees — it thrives directly under intense sun, which is why it is called Sun Coffee. It tolerates high-density planting but demands more fertilizer, raising costs, so farmers did not initially embrace it.

In the 1970s, however, when coffee prices soared, farmers turned to Caturra to raise yields. With strong promotion by Brazilian and Colombian authorities, the results were fruitful. Farmers' acceptance of Caturra marked a major shift in cultivation technique, and Brazil and Colombia adopted high-yield, high-density sun cultivation. By 1990, one million hectares could harvest 14 million bags of coffee beans, a 60% increase in production. No wonder high-yield, high-quality Caturra has become a variety relied on by producing countries everywhere.

Caturra suits cultivation from low altitudes of 700 meters up to 1,700 meters, showing strong altitude adaptability. The higher the altitude, the better the flavor, while the relatively lower yield is the fate of specialty beans. Some in academia call Caturra the intensive, sun-exposed version of Bourbon — a sharp description indeed. In Central and South America there is also a yellow Caturra variant (Caturra Amarello), though its reputation does not match that of Yellow Bourbon.

Lightly roasted, Caturra shows an obvious acidic aroma and overall brightness. Handled well, its sweetness performs very well, but the body is relatively low next to Bourbon, and the cleanliness of the mouthfeel falls a little short.

Caturra usually bears red berries, but in extremely rare areas there are yellow Caturras. Hawaii, for instance, grows very small amounts of yellow Caturra.

Pour-over Hartmann: 15g of coffee, medium grind (Fuji ghost-tooth grinder #4), V60 dripper, 88-89°C water. First pour 30g of water, bloom for 27 seconds. Pour to 105g and stop. Wait until the water level drops halfway, then continue pouring slowly to 225g. Discard the tail end. Water-to-coffee ratio 1:15, extraction time 2:00.

Coffee Information:

Country: Panama
Grade: SHG
Region: Volcán Region
Altitude: 1250-1700 Meters
Processing Method: Wine Processing Method
Variety: Caturra
Estate: Hartmann Estate
Flavor: Smoked wood spices, berries, fruit wine aroma

Panama Hartmann Estate Caturra Wine Processing Method

Ingredients: In-house roasted
Shelf Life: 30 days
Net Weight: 227g
Packaging: Bulk
Mouthfeel: Neutral
Coffee Bean Degree: Roasted beans
Contains Sugar: Sugar-free
Origin: Panama
Coffee Type: Other
Roast Degree: Medium roast

Hartmann Estate Introduction

Hartmann's story is as legendary as its coffee. Hartmann Estate sits in Santa Clara, Chiriquí Province. Its founder was Mr. Alois St. Hartmann (Luis Hartmann), born on June 20, 1891, in the Moravia region of Austria-Hungary, now the Czech Republic, and died on May 25, 1970, at the age of 78.

After World War I began, he was abandoned as a small boy. Thanks to his mother, he survived by hiding on a ship bound for Pennsylvania, USA. His two brothers both enlisted and died in the war. Luis Hartmann traveled through several countries with his friends until he reached Panama in 1911 and settled in Chiriquí Province in 1912, mainly active in the Candela area. He built the first small cabin in this pristine forest.

Today's Hartmann Estate is a family business founded in 1940 by Ratibor Hartmann, son of Alois. In 1966, Ratibor married Dinorora Sandi from Costa Rica. They had five children: Ratibor Jr., Alan, Alexander, Alicia, and Kelly. Each family member takes responsibility for a different part of the operation — coffee growth management, harvesting and processing, and estate tours. A family estate that has grown coffee for over 100 years is a legend in itself.

The business has a state-level cupping laboratory and sample-roasting room, and it rigorously cups every batch of coffee cherries. That discipline ensures Hartmann Estate's stable quality and its continuous pursuit of improvement. Their scientific approach, backed by nearly 100 years of family experience, guarantees excellent production.

FrontStreet Coffee Recommendation

If you enjoy the ripe fruit and fermented depth of natural and wine-processed coffees, these FrontStreet picks are a natural next step:

FrontStreet Yirgacheffe Sun-Dried Red Cherry

Natural processing demands steady sunshine, so it relies on long stretches of clear days — usually 27 to 30 days of drying. FrontStreet's sun-dried Red Cherry comes from the renowned Yirgacheffe region and uses only fully ripe, deep-red cherries, spread out on raised drying beds to keep them off the ground and away from insects, dust, and bacteria, with regular turning to avoid uneven drying. After a medium-light roast, it carries elegant floral aromas and bright acidity alongside pronounced tropical fruit, a full fermented character, and sweetness.

FrontStreet Sun-Dried Huakui

No discussion of naturally processed coffee is complete without Huakui. Extremely high altitude, an exceptional growing environment, fertile soil, and carefully selected ripe cherries give FrontStreet Huakui a delicate fragrance on its own, and Ethiopia Sidamo's signature natural process amplifies it further. Roasted medium-light to highlight Africa's airy floral and fruit notes, it pours with light fermented perfume, florals, citrus, and mango, a rich and complex body, honey sweetness, cocoa character with a hint of spice, and a long finish.

FrontStreet Colombia Xizhua

Unlike conventional naturals, FrontStreet Colombia Xizhua uses a double anaerobic natural process — two rounds of anaerobic fermentation before drying. The method, also known as carbonic maceration, seals whole freshly picked cherries in a tank and injects carbon dioxide to drive out oxygen, creating an oxygen-free environment that slows sugar breakdown and pH decline, so the beans gain more sweetness, more complexity, and a silkier texture before they are dried on beds and hulled. The result shows intense tropical fruit aroma, with passion fruit, apricot, dried fruit, and grape complexity on the palate and a hint of almond.