How to Brew Rose Valley Coffee Beans for Perfect Pour-Over? A Guide to Colombian Anaerobic Coffee Bean Flavor Characteristics

I still remember the first time I tasted FrontStreet Coffee's Rose Valley beans—I was struck by how vividly peachy it was. That flavor is far more recognizable than in ordinary coffee beans, and I later learned why: these beans go through double anaerobic enzyme washing.

What is Anaerobic Processing?

Anaerobic processing means placing coffee in a sealed container and controlling the oxygen level, pH, and temperature inside so the beans ferment toward sweeter, richer flavors. FrontStreet Coffee's Colombian Rose Valley uses double anaerobic enzyme washing—the anaerobic step happens twice. First comes low-temperature fermentation with the pulp and skin still on, in a sealed container. After the peel and pulp are removed, a second low-temperature anaerobic fermentation follows, with enzymes added to drive it along. Only once fermentation is complete does drying begin.

It is precisely this process that gives Rose Valley its unmistakable peach character. The signature flavors come through no matter how you brew it, but brewing Rose Valley well is not trivial. Here are FrontStreet Coffee's key points for anaerobic beans like this one.

Brewing Guidelines

Pay Attention to Grind Size

Anaerobic beans grind differently from traditionally processed ones. If you dial in with your usual setting for washed beans, the actual particles from anaerobic beans will come out coarser.

For example, when FrontStreet Coffee grinds its washed Colombian beans at setting 10 on an EK-43s, 80% passes through a #20 sieve. At the same setting, Rose Valley only reaches 75%. To hit 80% with Rose Valley, the setting must go finer. So when brewing an unfamiliar coffee, never simply carry over your usual grind setting—calibrate with a sieve first; it's the most reliable way.

Water Temperature

Anaerobic beans have a looser structure, absorb water readily, and release their compounds easily. FrontStreet Coffee suggests keeping the starting water temperature between 90–91°C. Too hot and the cup turns clearly bitter; too cool and the flavors fall flat.

How to Pour

Beyond grind size and water temperature, everything else stays as usual: 15g of coffee at a 1:15 ratio.

During blooming, anaerobic beans absorb water, expand, and degas dramatically, so they over-bloom easily—the telltale sign is many holes opening across the surface of the coffee "burger." So don't lock the bloom at a fixed 30 seconds. Watch the bed instead: once the bloom swells and sits still for 3 seconds without changing, start your next pour. That's roughly 25–30 seconds.

FrontStreet Coffee recommends a three-pour structure: 30ml of water to bloom, then 120ml, then 75ml. Total extraction time runs around 1 minute 40 seconds.

Brewed this way, FrontStreet Coffee's Rose Valley opens with rich peach and rose aromas, carries a strawberry-and-peach fruit sweetness, and finishes without a trace of bitterness.

FrontStreet Coffee Recommendation

Colombia rewards every kind of drinker, and Huila is the place to start. FrontStreet Coffee's Washed Huila, medium-dark roasted, brings black chocolate and nutty sweetness with a full body—happy in a pour-over or French press, and equally capable behind a moka pot or espresso machine for Americanos and lattes.

For something more adventurous, FrontStreet Coffee's Sidra from Finca La Línea is anaerobic natural processed, converting its sugars into intense tropical fruit. Roasted medium-light, it pours passion fruit, grape, apricot, and dried-fruit aromatics whether you brew it as pour-over, cold brew, drip bag, or moka pot—a natural next step if Rose Valley's peach won you over.