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Mellow Coffee Roasters

Rotterdam, Netherlands

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Founded by four friends — Vicky, Michael, Andy and Min — with backgrounds spanning law, medicine, economics and media, Mellow Coffee Roasters set out to be "yet another coffee roaster in the Netherlands" with a twist: celebrating Asian coffee origins they feel are underappreciated in Europe, alongside microlots from Latin America and Africa. The team roasts on ROEST equipment out of Rotterdam's Schiehaven and has placed in Dutch national competitions, including 1st at the Dutch Cup Tasters and 6th at the Dutch Barista Championship.

19

coffees

Netherlands

base

Location

Mellow Coffee Roasters

Schiehaven 15C, 3024 EC Rotterdam, Netherlands

Roasting facility & brewing lab (occasional public cupping events) — no published public retail hours

Coffees

19 coffees
ALO Sky Project - Shaded Dry Natural [JARC 74158]

From the Sky Project, a Tri-Up Coffee x Alo Coffee sourcing initiative against global warming that plants coffee ever higher; this lot grew at 2,420 m above Alo's Safo station. Big day-night swings ripen the cherry slowly for intense ripe-fruit sweetness and a silky body.

FilterShaded dry naturalEthiopia

Lychee, strawberry, mandarin, nectarine, tea-like

Chelbesa - Washed [JARC 74112, 74110]

A washed Chelbesa lot from Gedeb, where altitude, cool nights and iron-rich acidic soils give Yirgacheffe its brightness. Sorted, pulped, fermented, washed and dried on raised beds; roasted for espresso.

EspressoWashedEthiopia

Citrus candy, cacao fruit, black tea

Danche - Washed [JARC 74112, 74110]

Produced and exported by Habtamu Fikadu Aga from the Danche station in Yirgacheffe, which treats its wastewater by pH rather than returning it to the land. Clean and floral with stone fruit, sweet orange and a green-tea finish; a filter roast.

FilterWashedEthiopia

Peach, sweet orange, green tea

El Diviso - Advanced Natural [Bourbon Aji]

A seven-step advanced natural: selective hand harvest, initial oxidation, two sealed anaerobic fermentations, thermal conditioning and extended raised-bed drying to 10-11% moisture before controlled storage and milling. Round, syrupy mouthfeel. Roasted on a ROEST P3000. Source: mellowcoffeeroasters.com

FilterAdvanced natural (dual anaerobic fermentations, thermal conditioning, raised-bed sun drying)Colombia

Strawberry bubblegum · Cherry candy · Cherry

Finca El Jardín - Washed [Chiroso]

Leonardo Henao ferments hand-picked cherries up to 72 hours in the cherry, then 96 hours submerged after depulping; the farm's cold, high climate keeps the long ferments clean. Dried on covered camas africanas.

FilterWashed (72h in-cherry + 96h submerged fermentation)Colombia

Tropical fruit, stone fruit, black tea

Finca El Jardín - Washed [Geisha]

The Geisha twin of El Jardín's Chiroso, given the same two-step washed method: up to 72 hours in the cherry, 96 hours submerged, then slow drying on covered raised beds. Smooth and round with an oolong-like finish.

FilterWashed (72h in-cherry + 96h submerged fermentation)Colombia

Floral, citrus, grapefruit, oolong

Finca El Proceso - Washed [Chiroso]

A microlot processed at the La Roca facility: floated cherries ferment in sealed barrels for 36 hours, then in mucilage for another 24 hours after pulping, before washing and bed drying under protective covers with multiple daily turns. Silky, smooth mouthfeel. Roasted on a ROEST P3000. Source: mellowcoffeeroasters.com

FilterWashed — two-stage fermentationColombia

Floral, stonefruit · Apricot, lemon · Green tea-like

Finca El Progreso - Washed [Geisha & SL09]

Hand-picked cherries rest 48 hours on raised platforms before density sorting and depulping, then 48 hours of anaerobic fermentation in sealed bags, 12-15 days of sun drying with regular raking, and a 3-5 week stabilization period. Grown by Bilibran Tello, blending ancestral Peruvian practices (Ayni, Minka) with modern processing. Juicy, smooth mouthfeel. Roasted on a ROEST P3000. Source: mellowcoffeeroasters.com

FilterWashedPeru

Camellia, sugarcane · White grapes, sugarcane juice · White grapes, sugarcane

Finca Las Palmas - Washed [Bourbon Aji]

Selectively harvested cherries undergo a sealed-bag anaerobic fermentation of 30-38 hours, then a second anaerobic fermentation in tanks for roughly 80 hours after depulping, followed by a rinse and ~21 days of patio drying. Juicy mouthfeel. Roasted on a ROEST P3000. Source: mellowcoffeeroasters.com

FilterWashed with anaerobic fermentationColombia

Tropical fruits · Kiwi, berry-like · Dried mango

La Dinastía - Anaerobic Washed [Marageisha]

Cherries undergo a 90-hour anaerobic chilled fermentation; after pulping they rest in temperature-controlled tanks held near 16°C via spring-water circulation before washing and drying. Smooth, berry-juice-like mouthfeel. Roasted on a ROEST P3000. Source: mellowcoffeeroasters.com

FilterAnaerobic washedColombia

Thyme, lemongrass, dark fruits · Thyme, blackcurrant, spice · Thyme, blackcurrant

Mellow Signature Blend [Heirloom, Catimor, Caturra]

Mellow's inaugural house blend, pairing naturally processed Ethiopian beans for brightness and floral qualities with honey-processed Chinese Catimor for body and a tea-like finish, plus naturally processed Guatemalan coffee for sweetness and punch — "a mellow but lively espresso with layers of flavor," designed for daily drinking. Creamy, round mouthfeel. Roasted on a ROEST P3000. Source: mellowcoffeeroasters.com

EspressoHoney (China) & natural (Ethiopia, Guatemala)China, Ethiopia & Guatemala

Cacao, red fruits · Chocolate, nutty, stewed cherry · Chocolate and black tea

Royal Bean Geisha Estate - Washed [Geisha]

DNA-verified and purified Geisha trees, with controlled fermentations, slow drying and full in-house processing — floral, stone fruit, citrus, clean and weightless. Silky, smooth mouthfeel. Roasted on a ROEST L100. Source: mellowcoffeeroasters.com

FilterWashedTaiwan

Coffee blossom, citrus · Clementine, honey, black tea · Black tea

Ruera Estate - Natural [SL28, Batian, Ruirui 11, K7]

Hand-harvested, floated ripe cherries are spread thinly on outdoor drying beds for three days of semi-anaerobic fermentation under tarps, followed by roughly four weeks of sun drying for uniform moisture. Full, round mouthfeel. Roasted on a ROEST P3000. Source: mellowcoffeeroasters.com

EspressoNatural — semi-anaerobicKenya

Chocolate, red fruits, spice · Cacao, red fruits · Fruity

TianYu Estate - Anaerobic Natural [Catimor]

Yunnan's "winey natural": sugar-dense red cherries (16-17 °Brix) ferment cold in sealed tanks down to about 8 °Brix, then dry in the sun with skin and mucilage intact. A coating cup of dried fruit and brown sugar with a barrel-aged-whisky finish.

FilterAnaerobic natural ("winey natural")China

Dried fruit, whisky, brown sugar

Tierra Blanca Coffee - Washed [Geisha]

A single-plot Panamanian Geisha (plot C6) with jasmine aromatics, citrus flavor and a tea-like finish. Silky, smooth mouthfeel. Roasted on a ROEST L100. Source: mellowcoffeeroasters.com

FilterWashedPanama

Jasmine · Mandarin, candied lemon · White tea