O G-Battle Lisbon 2026 is the meeting point where analytical precision merges with sensory intuition. In this challenge of filter methods, focused on community and high technology, the goal is simple but demanding: the perfect extraction of a highly complex Geisha coffee.
With 33 participants (among professional baristas and enthusiasts) vying for the title, the competition follows a high-intensity direct elimination format. In groups of three, the competitors take to the stage with the world's most advanced “survival kit”: the versatility of the Goat Story Gina, the precision of the mills Commander C40, the speed of the filters Sibarist and the exact chemistry of minerals APAX Lab. Each person has 15 minutes to tame the Geisha coffee and present their best version.
Judgement mirrors the digital age: judges taste blindly and feedback emerges instantly on the screens through a CATA system. No secrets. All the data, from sweetness to clarity, is shared in real time with the public.
In the heart of Coffee Market at 8 Marvila, G-Battle becomes a collaborative experience. Between water workshops, millimetre recipes and the vibrant atmosphere of the festival, this is the place for those who want to see brewing taken to the next level. Come and cheer on the masters of extraction, discover the potential of the best equipment on the market and celebrate speciality coffee at its purest.
O G-Battle the 29 March, as part of Lisbon Coffee Week, at 8 Marvila, Lisbon.
A G-Battle It's where science meets the soul. This is a battle of Brewing (filter coffee) focused on community and sensory experience, using the world's most advanced equipment and highly complex Geisha coffee. No frills, just the perfect extraction.
Participants: Up to 27 competitors. Open to professionals and enthusiasts.home brewers).
Registration: Participation is guaranteed by purchasing a competition ticket.
The Challenge: A knockout formathead-to-headExtract the best-tasting Geisha coffee against two rivals.
The Environment Collaborative and educational. We share extractions, we share knowledge, and we get excited about TDS and minerals.
The competition is divided into three decisive phases:
Elimination rounds: Groups of 3 compete against each other. The winner of each group advances.
Semi-finals The 9 best winners compete for a place in the final.
The Grand Final: The 3 finalists receive a mystery, world-class Geisha coffee, live on stage, to battle for the trophy.
Each competitor follows a strict but professional stage routine:
Introduction to Equipment Masterclass + Coffee Lift: On Friday, 27th March, from 4:00 PM, you will have a practical introduction to water mineralisation, learn key extraction techniques with Gina, and pick up your Geisha coffee in person. Location: Competition area next to the Bourbon Stage.
Mandatory attendance – there will be no alternative to collecting the coffee.
Preparation Workshop (40 min): On Saturday, you'll have time to test the water, minerals and equipment.
Stage Time (15 min): You have 15 minutes to adjust the recipedial inPrepare your best cup.
Cleaning and leaving (5 min): The stations must be left spotless for the next group.
The Service: Serve exactly 150ml of coffee on the server provided (labelled with your QR code). No oral presentation is required – the coffee speaks for itself.
The judges will assess the Flavours, Aftertaste, Acidity, Texture, and Balance of each drink from the perspective of Complexity and Perceived Quality, using the CATA system for quick feedback.
Competitors will be able to see feedback on their drinks in real time.
We offer the ultimate amusement park for Brewing. You don't need to bring anything, but you can bring support tools.
Coffee: High complexity geisha (100g for preparation + 40g per round).
The Kit:
Extraction Goat Story Gina.
Mill: Commander C40.
Water: 1L Zero Water + 500ml of Third Wave Water concentrate 1000 ppm.
Filters: Sibarist (Fast or B3).
Containers Ni Wares Sensory Cups.
Scales and temperature-controlled kettle.
“Competitor's ”Extras": You can bring thermometers, refractometers, or cooling tools, but You cannot replace the provided grinder, extraction system or filters.
3 Sensory Judges: Focussed entirely on cup quality and preference.
Instant feedback: All the judges' comments are displayed on screen so that the public and competitors can learn in real time.
Respect: Collaborative behaviour is mandatory. We are here to learn and celebrate excellent coffee together.
We believe all who grace the stage deserve recognition, but the top extracts will take home the kit of Brewing definitive.
| Place | Prize |
| 1st place | G-Battle Personalised Trophy + C40 LAB Series Hammerhead (value €270) + Commander's Swag Bag + Goat Story Gina (value €225) + APAX Lab Mineral Set (value €100) + Ni Wares Mug (value €49) + 100 Sibarist Fast filters (value €35) + 100 Sibarist B3 filters (value €35) + Tasteology Tote Bag + Lisbon Coffee Week Cupping Spoon + Coffee |
| 2nd place | Commander's Gift Bag + APAX Lab Mineral Set (£100 value) + Ni Wares Mug (£49 value) + 100 Sibarist Fast Filters (£35 value) + 100 Sibarist B3 Filters (£35 value) + Tasteology Tote Bag + Lisbon Coffee Week Cupping Spoon + Coffee |
| 3rd place | Commander's Gift Bag + APAX Lab Mineral Set (£100 value) + Ni Wares Mug (£49 value) + 100 Sibarist Fast Filters (£35 value) + 100 Sibarist B3 Filters (£35 value) + Tasteology Tote Bag + Lisbon Coffee Week Cupping Spoon + Coffee |
If you can't find the answer to your question, please contact us.
Lisbon Coffee Week is the capital's edition of the biggest national coffee festival.
Seven days dedicated to coffee and, above all, to celebrating coffee culture. The events range from workshops to parties, championships and much more.
In its first full edition in Lisbon, Lisbon Coffee Week is highlighting the AeroPress Portugal 2025 championship.
We want to bring the smell of coffee to the city of Lisbon, so the workshops and parties of this coffee festival are spread across the city. See where all the events are pop-up here.
For seven days Lisbon will smell of coffee.
From Monday to Sunday you'll find Lisbon Coffee Week events all over the city, with workshops taking place in coffee shops, restaurants and schools.
See ours diary all the events you can't miss.
Lisbon Coffee Week is designed for coffee lovers - from the consumer to the coffee professional - producers, importers, entrepreneurs, roasters and baristas, with events and championships for all levels of coffee knowledge.
A coffee festival for everyone.
Lisbon Coffee Week has speakers of various nationalities and participants from all over the world, so this year Lisbon Coffee Week has events in Portuguese and English.
At all events we will always have staff available to help you translate if you have language difficulties and want to take part.
So check the language of each event and, if in doubt, get in touch.
Yes, our photographers will be identified, as well as any press who may attend.
By buying tickets for Lisbon Coffee Week you agree to be photographed and filmed within the framework of the events, as well as allowing us to use your image to publicise the event in the future.
Photographs and videos taken by visitors
As you understand, we want to protect the integrity of the festival, our speakers and exhibitors. Therefore, if you intend to photograph or film parts of the event, we ask that you exercise common sense and abide by some basic rules.
Although you may photograph or film during Lisbon Coffee Week for personal use, you may not sell any photos or videos of the festival. Please respect the privacy of other participants who may not wish to be filmed or photographed.
Photography, recorded video and audio and children
The safety of children is very important to us, so images or voices of children used online will not identify the child unless we have permission from the child's carers to do so.
We can't guarantee access to all the workshops for people with reduced mobility, as the various spaces where they will take place may not be accessible. Therefore, if you need assistance, please contact us.
