We sit down with the brand new Swiss Brewers Cup Champion, Sierra Yeo, just three days after her incredible victory! Sierra shares all the details from one of the most competitive Swiss Brewers Cup in years , her mental preparation strategies , and the intense process of dialing in coffee under pressure.She also reveals the story behind her championship-winning coffee, the unique equipment she used, and, most importantly, the full recipe so you can recreate her brew at home! 🏆 Championship Coffee & ProcessThe Coffee: Mount Tumas pre-dried cold fermentation natural Geisha from Chiriquí, Panama. The Producer: Karen – who used a complex 5-day pre-dry, 15-day river water fermentation, and 8-week drying process. The Flavors: Rose, Grape, Peach, Mandarin, and lots of honey sweetness (you can even rap them). ☕ Sierra’s Winning Recipe Breakdown (Full Demo at the end!)Sierra shares her full recipe using a small dose to maximize bed depth and extraction: Dose: 14g Coffee Water: 230g Water at 94°C Pours: 40g Bloom, followed by three more pours. Target Drawdown: 2:45 Water Chemistry: Built with Magnesium Sulfate (for acidity vibrancy) and Calcium Chloride (for silky mouthfeel). 🛠️ Equipment UsedSierra sourced unique equipment from her travels, to maximize aroma and clarity: Dripper: Hario Flow Dripper (Designed by Eric Liu from Taiwan) – Features a slightly convex, spoke-like design with a center magnet for a donut-shaped bed. Server: Icosa Cyclone Mini – Features internal ridges to aerate the coffee and a dome to prevent splashing/oxidation. Glassware: Orea Sense Glass (used to serve judges) – Sierra notes it gives the coffee more clarity and sweetness. 🔗 Links & Resources (Shop Now!)Get the Coffee! Limited drops of the winning Mount Tumas Geisha are available at Rose Coffee Roasters: https://rose-coffee.com/Connect with Sierra Yeo: https://www.instagram.com/sierrasriracha/Sample and Home Roasters, Brewing Equipment and more: https://roastrebels.com/enChapter:0:00 Sierra Yeo, Swiss Brewers Cup Champion 202620:15 Sierra's Swiss Brewers Cup Recipe#SierraYeo #BrewersCup #GeishaCoffee #HarioFlowDripper #CoffeeRecipe #SpecialtyCoffee #BrewingTips #RoseCoffeeRoasters #RoastRebels▬ About this channel ▬▬▬▬▬▬▬▬▬▬▬▬At Roast Rebels, our mission is to make coffee roasting easy. On the one hand we offer the most proven small scale roasting machines and high quality green coffees, on the other hand we want to support people who roast coffee with tips, knowledge, roasting profiles and tutorials to achieve good roasting results quickly. You'll find lots of information and roasting profiles on our website, as well as here on the YouTube channel. #homeroasting #coffeeroasting▬ More Information ▬▬▬▬▬▬▬▬▬▬▬▬You will find a lot more information as well on our website: https://roastrebels.com/enOr if you are from Switzerland: https://roastrebels.com/ch/en▬ More Videos ▬▬▬▬▬▬▬▬▬▬▬▬More home roasting knowledge: ⁨@CoffeeRoasting⁩ Mehr Heimrösterwissen auf Deutsch: ⁨@RoastRebels⁩ ▬ Social Media ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬►Facebook: https://www.facebook.com/roastrebels/►Instagram: https://www.instagram.com/roastrebels/►Newsletter: https://eepurl.com/dxHgML►Podcast (Roasting coffee - made easy): https://anchor.fm/roasting-coffee►Onlineshop for home coffee roasters: https://roastrebels.com/en/►Onlineshop for Swiss coffee roasters: https://roastrebels.com/ch/en/

In this short but vital extract from the Aillio Bullet Masterclass, we deep dive into the technology that makes the Bullet roaster one of the most precise home/prosumer machines available: its innovative sensors!Understanding these sensors is key to unlocking consistent, professional-grade roast profiles.We break down the three main sensors, explaining exactly what they measure and how to use them for more consistent results:1. Bean Temperature (BT) ProbeThe classic probe, measuring temperature *in between* the beans. Useful for comparing against traditional roasters.2. Infrared Bean Temperature Sensor (IBTS)This game-changer measures the surface temperature of the bean (or the drum during pre-heat) for ultra-fast, precise, and volume-independent readings. Learn why the IBTS is the sensor you should be relying on.3. Pressure Sensor (FlowSense)Available on the R2 and R2 Pro models, FlowSense ensures a perfectly steady airflow by automatically compensating for chaff buildup. This makes your roast profiles more repeatable and reliable than ever.------------------------------------------------------MASTER THE AILLIO BULLETWant to master every function, technical detail, and maintenance step of your Aillio Bullet? Check out the full, 4.5-hour Aillio Bullet Masterclass here4.5 HOUR MASTERCLASS FOR FREEIf you get an Aillio Bullet coffee roaster from Roast Rebels, you will get a free access to the Aillio Bullet masterclass: https://roastrebels.com/en/aillio-bullet-r2-pro/

In this exclusive interview, we sit down with Mikaël Portannier, the current World Coffee Roasting Champion, to discuss his incredible journey. From his beginnings in catering school to competing in his first student championship, Mikaël shares the key moments that ignited his passion for coffee.Discover how a simple contest led him down a path of continuous learning, transforming him from a barista to a world-class roaster. Mikaël reveals the importance of daily cupping for quality control and the motivation behind his competitive spirit.Learn about the intense preparation that goes into a world championship, the challenges of working with unfamiliar machines, and the crucial role of his team. This is a must-watch for anyone passionate about coffee, roasting, and the pursuit of excellence.Mikaël on Instagram: https://www.instagram.com/mikae__lParcel Coffee: https://parcelcoffee.fr/Roast Rebels: https://roastrebels.com/Chapters:00:00 - Introduction to Mikaël Portannier, the World Champion00:50 - How Mikaël's coffee journey began03:06 - Competing in "Coffee and Good Spirits"05:00 - The importance of cupping for a roaster05:39 - First experiences in roasting competitions09:12 - Transition from barista to professional roaster11:19 - What motivates him to compete13:24 - Preparing for the World Championship16:31 - The coffees used in the competition17:03 - The team behind the champion17:49 - Overcoming challenges with competition machines37:27 - Where to find Mikaël online▬ About the ROEST Sample Roaster ▬▬▬▬▬▬▬▬▬▬The ROEST L100 Ultra is a highly advanced sample roaster designed for the needs of coffee roasters, importers, and competition participants. It operates with a convection-based roasting system, ensuring even heat distribution. With a capacity of 50 to 200 grams per batch, it is ideal for precise evaluation of green coffee. Its advanced sensor technology provides real-time data on temperature, airflow, and bean movement, allowing for precise control of the roasting profile.A key feature of the ROEST L100 Ultra is its automated roast profile management with adaptive algorithms. The machine detects the first crack automatically and adjusts the roast development accordingly to ensure consistent results. In addition to fully automated roasting, it also offers manual control for customization. With its integrated cloud-based software, users can store, analyze, and optimize roast profiles. The ROEST L100 Ultra is particularly suited for professional applications where consistency and efficiency are essential.ROEST coffee roasters with free shipping within Europe: https://roastrebels.com/en/roest▬ About this channel ▬▬▬▬▬▬▬▬▬▬▬▬At Roast Rebels, our mission is to make coffee roasting easy. On the one hand we offer the most proven small scale roasting machines and high quality green coffees, on the other hand we want to support people who roast coffee with tips, knowledge, roasting profiles and tutorials to achieve good roasting results quickly. You'll find lots of information and roasting profiles on our website, as well as here on the YouTube channel. #homeroasting #coffeeroasting▬ More Information ▬▬▬▬▬▬▬▬▬▬▬▬You will find a lot more information as well on our website: https://roastrebels.com/en▬ More Videos ▬▬▬▬▬▬▬▬▬▬▬▬More home roasting knowledge: https://www.youtube.com/@UC5xchx_vufvEIgRXgiXCjwQ Mehr Heimrösterwissen auf Deutsch: https://www.youtube.com/@UClk5nH5ijBrbyL5TBkomWSQ ▬ Social Media ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬►Facebook: https://www.facebook.com/roastrebels/►Instagram: https://www.instagram.com/roastrebels/►Newsletter: https://eepurl.com/dxHgML►Podcast (Roasting coffee - made easy): https://anchor.fm/roasting-coffee►Onlineshop for coffee roasters: https://roastrebels.com/en⁠