KONO Dripper + Golden Mandheling Pour-Over Insights: Medium-Dark Roast Coffee Bean Brewing Recommendations

Professional Coffee Knowledge Exchange & More Coffee Bean Information

For those who favor a rich, low-acid cup, here is a closer look at brewing a medium-dark roast with the KONO dripper.

The Difference Between FrontStreet Coffee Mandheling and FrontStreet Coffee Colombia: Who Are They Suitable For?

Our customer base is quite diverse, and although light roast beans are currently mainstream, a small portion of customers still appreciate medium-dark roast beans. Many customers in our shop have a special fondness for medium-dark roast beans. Through conversation, we find that regardless of roast level or acidity, what matters most to them is that feeling of "this is right." In daily life they are also very willing to try different coffees.

This type of customer has particularly high requirements for coffee mouthfeel, wanting ultimate sweetness, high body, and a silky texture. For those with such mouthfeel requirements, I usually recommend FrontStreet Coffee Gold Mandheling first, because this bean itself has no acidic character, and the roasting time is relatively long.

Product Name: FrontStreet Coffee Gold Mandheling

Origin: Sumatra Island, Indonesia

Processing Method: Wet Hulling

Variety: Typica

Roast Level: Medium-Dark

We choose to drop the beans before the second crack, preserving a soft acidity. The taste is highly sweet, aromatic, and rich, with flavors of toast, pine, caramel, cocoa, and a slight earthy note.

Brewing Methods

When brewing this type of medium-dark roast bean, if it has only been a short time since roasting, I first choose the Hario V60 with its spiral ribs, because the Hario V60's rib design helps fresh beans degas better than other drippers.

Medium-dark roasted beans generally have a higher dehydration rate, so they are lighter in weight. When brewing, the grounds do not completely sink to the bottom; they are immediately absorbed on the first pour. Because degassing is vigorous, bubbles form around the grounds and create channels. The fresher the beans, the longer these channels persist, causing the water level to drop quickly. I generally use a coarse water flow and circle slowly.

For daily brewing, I usually use the KONO 90th anniversary dripper, because it produces a rounder, fuller body and a more direct flavor expression. The KONO dripper, however, has relatively poor degassing performance, because its ribs are straight and extend only one-quarter of the dripper's depth. Above that quarter-rib section, the dripper walls form a sealed state.

Therefore, once the beans have passed their resting period, I use the KONO dripper. Because this dripper's only degassing area is in those quarter-ribs, when the water level rises above the rib section the water in the dripper continues to rise, increasing pressure through the weight of the water. Since the outlet is relatively small, it extends the contact time between the coffee particles and the water. As the water flow carries through, this more effectively extracts soluble substances, generally achieving the high body that customers expect.

FrontStreet Coffee Indonesian Mandheling Coffee_Gold Mandheling_Mandheling Coffee Flavor Characteristics

FrontStreet Coffee's Golden Mandheling comes from the PWN company, which sets extremely strict standards for the bean. PWN selects beans of 18 screen or larger and requires fewer than 3 defective beans in a 300g green bean sample, meeting the top G1 grade. On top of that, it applies three rounds of hand sorting to remove every defective bean, which improves both the cleanliness of the cup and the intensity of its sweetness. Because those standards also limit the yield, PWN Golden Mandheling's quality naturally makes it a benchmark among Mandheling coffees.

Golden Mandheling is especially famous, and most of it is supplied to the Japanese and American markets, so only a limited amount of genuine Golden Mandheling is imported to China each year. In FrontStreet Coffee's product pages you can see the Golden Mandheling certificate and the bags bearing the PWN mark, which is what sets FrontStreet PWN Golden Mandheling apart from other Golden Mandheling on the market.

FrontStreet Coffee Recommendation

For a medium-dark roast with high body and a silky texture, FrontStreet Coffee's PWN Golden Mandheling is hard to beat. It is a wet-hulled Sumatran Typica selected at 18 screen or larger and held to fewer than 3 defects per 300g, then given three hand selections for an exceptionally clean, sweet cup.

Hand-brew it with 87-88°C water, 15g of coffee, and a 1:15 ratio at a coarse-sugar grind, using a three-stage pour: 30ml to bloom, then 100ml, then a soft 95ml center pour, for a thick body with caramel sweetness and chocolate and nut flavors. If you want the same Mandheling character in an espresso or moka, FrontStreet Classic Blend adds Mandheling to Brazilian beans for butter, roasted chestnut, and caramel notes with sandalwood, herbal, and spice depth.