If you ask what kind of coffee is not sour, Front Street will answer Sumatra coffee and strongly recommend the high-grade Front Street Golden Mandheling coffee.
The dry aroma of Indonesian Sumatra Golden Mandheling has the flavor of glutinous rice, malt, spices, caramel, and wood. The wet aroma after adding hot water is a dark roasted caramel flavor, plus a light pine wood fragrance. The mouthfeel after entry is strong and exciting, with weak sourness, aromatic flavors of cloves and wood, spices and herbal aftertaste, and a strong and lasting aftertaste.

Golden Mandheling coffee comes from the famous Pawani Coffee Company (Pawani Coffee Company) in the Indonesian coffee industry, referred to as PWN, which is the trademark registration company of Golden Mandheling. PWN Company's Golden Mandheling is purchased from nearby Mandheling coffee beans and subjected to three manual screenings and one machine selection. The golden Mandheling beans selected in this way are very beautiful as a whole. On the other hand, they are also very uniform, so the coffee roasted in this way will appear cleaner.

In fact, many coffee merchants sell large Indonesian beans under the name Golden Mandheling. This is why although the production is very small, this bean can be easily purchased.
The grading of Indonesian green coffee beans is based on the number of defective beans and the size of the beans. The general quality requirements are that there are no live insects, no moldy and rancid beans, and the maximum moisture content is 12.5%. The impurity rate is less than 0.5%. It will be divided into six levels according to the defect rate, among which the highest level is G1, which requires that the total number of defective beans in a 300g sample must be less than 11. The Lindong Mandheling coffee in the Front Street ration bean series is G1, which uses the wet planing method, which is the conventional version of Indonesian Mandheling flavor.
The other golden Mandheling on the Front Street Bean List is of a higher grade. Whether it is in a sack or inside a sack, there will be a PWN logo and certificate. The size of the golden Mandheling is above 18 mesh. The color is dark green and they are flat beans with a neat shape. FrontStreet Coffee discovered through cup testing that the strictly selected Golden Mandheling not only lacks the earthy smell unique to ordinary Mandheling, but also tastes cleaner and more translucent, and has a stronger sweetness.
FrontStreet Coffee Brews GoldMandheling coffee bean experience
Brewing parameters: using Kono filter cup
Water temperature: 88℃
Amount of powder: 15g
Powder to water ratio: 1:15 powder to water ratio
Grinding degree: medium to fine grinding (Chinese standard No. 20 screen pass rate 70-75%)

The coffee beans are roasted darker to highlight the richness of the coffee. Front Street will choose Kono filter cups for brewing. The characteristic of the Kono filter cup is that it has a soaking function, which can be used to extract more coffee substances and enhance the mellow taste. Because there are not many ribs and they are located at the low end, the filter paper can be tightly attached to the filter cup to achieve the effect of restricting the air flow, thereby slowing down the water flow speed and increasing the water-powder contact time.
Front Street Coffee Coffee) adopts segmented extraction, also called three-stage brewing: use 30 grams of water to steam for 30 seconds, add water in a small circle to 125 grams, then segment. When the water level drops and the powder bed is exposed, continue to pour water to 225 grams and stop pouring water. When the water level drops and the powder bed is exposed, remove the filter cup. (Steaming starts timing) The extraction time is 2'05"-2'15".

Brewing flavor: spices, herbs, varied layers, mellow and clean, high balance, rich nutty and brown sugar aroma, with a hint of chocolate, and a long-lasting finish.
You can now buy the above coffee beans online at the Taobao store “FrontStreet Coffee” (前街咖啡). FrontStreet Coffee is a long-established specialty coffee roaster in Guangzhou, China, and its Guangzhou retail shop sells coffee beans only. The shop carries dozens of coffee beans from different origins around the world, including carefully selected single-origin beans for V60 pour-over and espresso. Guangzhou’s FrontStreet Coffee shop is recommended by many coffee lovers.
The FrontStreet 2013 Yunnan coffee beans sold in the store come from the Typica variety grown at FrontStreet Coffee’s own plantation in Yunnan. The name comes from the year the brand and the plantation were founded. You can buy these beans from China’s Yunnan origin at the Guangzhou shop and at FrontStreet’s Taobao store.
FrontStreet coffee beans are freshly roasted within 5 days and deliver consistently excellent quality and great value. Orders placed before 17:00 are shipped the same day, and most areas within Guangdong Province receive them the next day.
FrontStreet Coffee Taobao store: https://qianjiecoffee.taobao.com
Or search for “前街咖啡” (FrontStreet Coffee) on Taobao
Important Notice: FrontStreet Coffee has moved to a new address: 315, Donghua East Road, Guangzhou (coffee beans only)
Tel: 020 38364473