Water Temperature for Dark Roast Coffee Beans How to Grind Dark Roast Coffee Beans Hand Brew Sharing

FrontStreet Coffee's Deep-Roast Mandheling Recomposition

Mandheling is usually cast as the heroic figure among coffees: full-bodied and intensely aromatic, with a rugged edge that gives it a wild charisma in the cup. This honey-processed Mandheling from Aceh is as rich as a traditional Mandheling but carries the character of ripe fruit, combining gentle fruit acidity with hazelnut sweetness and a hint of spice. The flavor is prominent without being harsh, and it enters the mouth as smoothly as cream cheese. Grown at 1200-1400 meters, it keeps Indonesian coffee's signature richness while the honey process makes it unusually sweet.

For a first attempt, the aim was to avoid the bitterness common in dark roasts while fully extracting the flavors of this honey-processed bean, so a shorter extraction and a relatively high water temperature were chosen. The parameters were as follows:

1. Dripper: Kono
2. Grind size: Medium-coarse (BG 6W: 58% pass-through rate on a Chinese standard #20 sieve)
3. Water temperature: 88°C
4. Coffee-to-water ratio: 1:15
5. Brewing method: Multi-stage extraction

Bloom with 30g of water for about 30 seconds. Using a thin stream, pour 95g in concentric circles at the center, breaking at 125g. Continue to 220g as the level drops and the bed is about to be exposed, then lift the dripper away, timing from the start of the bloom. Extraction time is 1'50".

Richness and sweetness are well balanced overall, with a slightly bitter edge, gentle fruit acidity and a dark-fruit character.

In Brief: FrontStreet Coffee

FrontStreet Coffee is a coffee research house and is glad to share what it knows. It shares without reservation simply to help more people fall in love with coffee. The shop runs three discounted coffee events each month, because FrontStreet Coffee wants more drinkers to enjoy the best coffee at the lowest price — that has been the mission for the past 6 years.

FrontStreet Coffee Recommendation

This honey-processed Aceh Mandheling is a fine introduction to Indonesia's wet-hulled tradition, and FrontStreet Coffee's reference point for that style is the PWN Golden Mandheling. PWN screens to G1 grade — beans above 18 mesh, with fewer than 3 defects in a 300g sample — then applies 1 machine plus 3 manual selections for uniform color, shape and size, which is why the cup tastes cleaner and more transparent, with richness and sweetness to the fore. Because PWN owns the "Golden Mandheling" trademark, only its beans may use the name.

If you want the wilder, more old-school expression, FrontStreet's Lindong Mandheling blends Tim Tim and Ateng and roasts medium-dark for a lower-acid cup of clove, wood and spice with a long, thick sweetness. For milk drinks, the Classic Blend layers medium-dark Mandheling over a Brazil base with a little Robusta for crema, adding butter, roasted chestnut and caramel notes. FrontStreet roasts these beans medium-dark and recommends brewing Mandheling at 87-88°C.