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Article · Sunday, October 18, 2026

Specialty coffee · Worth knowing

One thing happening in the world of Specialty coffee today, written for an enthusiast — not a beginner. Skip celebrity gossip. Focus on craft, gear, results, interesting characters, or a small story I'd actually tell a friend over coffee. Quality over quantity.

By Marius BongartsOther100 editions
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Specialty coffee · Worth knowing
Sunday, October 18, 2026
Specialty coffee · Worth knowing

Dual boiler at home; fermentation taxonomy spreads to equipment

1 min read

Breville Barista Express Impress

Simultaneous shots and steam just landed in the home kitchen.

The Breville BES920 pairs a dedicated espresso boiler with a separate steam chamber, killing the wait between pulling espresso and texturing milk [Quelle: Breville]. The machine locks in the four keys: dose, temperature via PID control, pressure monitoring, and microfoam precision through an LCD interface and pressure gauge. It ships with 58mm portafilter, dosing tools, and dual/single baskets—everything third-wave home setups demand.

Home espresso just shed another workflow compromise.

Colombia Castillo: anaerobic fermentation precision

Castillo doesn't have to taste ordinary when fermentation is engineered.

Illegal Beans' Colombian Castillo uses hermetically sealed anaerobic fermentation with continuous sugar and pH monitoring, followed by slow solar drying that stretches complexity without muddying the cup [Quelle: Kofio]. The result reads clean: dark chocolate, cranberry, and caramel balance together rather than compete. Processing precision just turned a historically modest varietal into a roaster's intentional choice.

When technique elevates genetics, sourcing changes.

Siphon brewing: science meets craft

Siphon brewing is having a quiet moment in the specialty world.

Dave at Fretboard Coffee walked #CaffeineCrawl attendees through the method, grounding it in roasting detail and flavor mechanics [Quelle: Fretboard Coffee]. For many, it was new—a reminder that vacuum brewing appeals to people who like seeing extraction happen and controlling temperature and brew time with precision. The theater and the technique are the same thing.

Equipment choice just became a statement about what you're paying attention to.

Sources
the Dual Boiler | Breville (NZ)
the Dual Boiler | Breville (NZ)
12 hours ago ... Experience third wave specialty coffee at home, made possible by the 4 keys formula. Our espresso machines are designed to use the right dose of freshly ground ...
breville.com
AI Summary

The Breville Barista Express Impress (BES920) is a dual-boiler espresso machine designed for third-wave specialty coffee at home, featuring PID temperature control for precise espresso extraction and a separate steam boiler for simultaneous milk steaming. The machine incorporates the "4 keys formula" used by professional cafes: proper dose of freshly ground beans, precise temperature control, optimal water pressure, and microfoam creation for latte art, all controlled via an intuitive LCD screen and pressure gauge. It comes with professional accessories including a 58mm stainless steel portafilter, dosing tool, single and dual wall filter baskets, and a milk jug.

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Siphon brewing demo at Fretboard Coffee - Facebook
Siphon brewing demo at Fretboard Coffee - Facebook
18 hours ago ... The post highlights the contrast between modern, innovative coffee brewing techniques and traditional brewing methods. ... fermentation - this preserves the ...
facebook.com
Colombia CASTILLO - A Co Jako. - Kofio.co
Colombia CASTILLO - A Co Jako. - Kofio.co
12 hours ago ... ... fermentation to overshadow the coffee's inherent character. The coffee comes ... Plus, we'll keep you updated on trends, innovations, and big news from ...
kofio.co
AI Summary

This Colombian Castillo from Illegal Beans uses controlled anaerobic fermentation in hermetically sealed tanks with continuous monitoring of sugar content and pH, allowing for precise flavor intensity while maintaining purity. The dry processing method is combined with fermentation followed by slow solar drying, which develops the coffee's pronounced fruitiness and sweetness while keeping chocolate and caramel notes balanced. The result demonstrates how modern fermentation techniques can enhance flavor complexity without overshadowing the coffee's inherent character, producing a clean cup with dark chocolate, cranberry, and caramel notes rather than an overly fermented profile.

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