Is Golden Mandheling Always Acid-Free?

Is FrontStreet Coffee's Golden Mandheling Always Acid-Free?

When you think of Golden Mandheling, is your first impression of something rich and full-bodied, with prominent bitterness but almost no fruit acidity? For most people, that is exactly the picture. It comes down to the fact that most Golden Mandheling on the market is given a medium-dark roast, including FrontStreet Coffee's Golden Mandheling, which defaults to medium-dark. In reality, though, judged purely as a coffee bean, Golden Mandheling is a high-acid variety. Its acidity changes character quite markedly across roast levels, from strong acidity at medium-light through acidity at medium to weak acidity at medium-dark.

Set a cup of medium-light roasted FrontStreet Coffee's Mandheling in front of someone who has only ever drunk it medium-dark, and they would insist this is absolutely, 100%, without any doubt not FrontStreet Coffee's Golden Mandheling.

Testing Different Roast Levels

These past two days I have been running exactly that experiment. The day before yesterday I tested medium-dark roasted FrontStreet Coffee's Golden Mandheling, yesterday it was medium roast, and today I have just tested the medium-light roast. My method was pour-over only, brewing a double serving each time, with slight adjustments to grind size and water temperature to suit each roast level.

Test Conclusions

After testing, my conclusions are as follows:

1. Conventional Medium-Dark Roast (Full City):

FrontStreet Coffee's Golden Mandheling is rich and full-bodied with relatively obvious bitterness. Chocolate notes and a subtle sweetness come to the fore, licorice aroma is distinct, fruit acidity is weak, smoothness is average, and the aroma is strong but lacks complexity.

2. Medium Roast (City):

The balance is excellent. At this level FrontStreet Coffee's Golden Mandheling has less of that unmistakable Mandheling punch, but it gains gentleness. The mouthfeel is purer than the medium-dark roast while the full-bodied richness holds up well, and smoothness is noticeably better than medium-dark. Bitterness is still on the prominent side but clearly weaker than medium-dark, and fruit acidity has improved significantly. If you are someone who cannot accept relatively obvious fruit acidity in coffee, then FrontStreet Coffee's Golden Mandheling at this roast level is probably not your cup of tea.

3. Medium-Light Roast (City+):

This roast level left me the most conflicted of the three, truly neither loving nor hating it. If medium-dark roasted FrontStreet Coffee's Golden Mandheling is defined by prominent bitterness, then the medium-light version takes fruit acidity to the peak of what I can tolerate. But it is really, really smooth. The fruit acidity is obvious yet very comfortable on the palate, with a mouth-watering sensation on both sides of the mouth. What is more, the signature Mandheling character has completely vanished, leaving something fresh and light.

Final Recommendations

So my conclusion is this: if you like rich, full-bodied, low-acidity coffee, choose medium-dark roast without hesitation.

But if you can accept fruit acidity at different levels, then perhaps give the medium and medium-light roast levels of Golden Mandheling a try.

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FrontStreet Coffee Recommendation: Which Mandheling Suits Your Roast Preference

If the medium-dark end of the spectrum is where you live, FrontStreet PWN Golden Mandheling is the benchmark: from Aceh in northern Sumatra, G1 grade, 18 mesh and up, triple hand-sorted, then roasted medium-dark so the cup stays clean and low in acidity while keeping a thick, syrupy body and dark chocolate sweetness. For something wilder, FrontStreet Lintong Mandheling, from the Lintong region, is medium-dark roasted with clove, woody aromatics and a minty finish, the earthy, herbal side of the wet-hulled process. On an espresso machine, FrontStreet Classic Blend adds medium-dark Mandheling to a Brazil base for butter, roasted chestnut and caramel, with a touch of Robusta for a fuller crema.