EPISODE · Feb 2, 2026 · 11 MIN
Roaster Tips: How to Scale Up Batch Size Without Wasting Coffee
from The Roast it Yourself Podcast · host The Roast it Yourself Podcast
In this episode of the Roast It Yourself Podcast, we dive into a practical roasting challenge many home roasters face: scaling up batch size without wasting coffee. Stephen Burnett and Catherine Mansell respond to a listener question from Greg, a longtime DIY roaster who recently upgraded to an Aillio Bullet R2 and is looking to move from 250-gram batches to the Bullet’s sweet spot of 1.5 pounds—without burning through pounds of coffee in trial and error. Catherine breaks down what really changes when scaling a roast, focusing on the critical role of preheat temperature, thermal mass, and how to maintain similar roast curves as batch size increases. Along the way, they talk Kenya AA as a use-case, share realistic expectations for profile translation, and offer guidance that applies not just to the Bullet, but to thoughtful, data-driven roasting in general. As always, the episode blends hands-on technical advice with real-world experience, making it valuable for home roasters leveling up and professionals refining their process. Got a roasting question of your own? Send it to [email protected] NOTES: Follow Our Instagram Account @RIY_POD CHECK US OUT HERE: Coffee Bean Corral YouTube Coffee Bean Corral Website Current Crop Roasting Shop Website Rancher Wholesale Website
What this episode covers
In this episode of the Roast It Yourself Podcast, we dive into a practical roasting challenge many home roasters face: scaling up batch size without wasting coffee. Stephen Burnett and Catherine Mansell respond to a listener question from Greg, a longtime DIY roaster who recently upgraded to an Aillio Bullet R2 and is looking to move from 250-gram batches to the Bullet’s sweet spot of 1.5 pounds—without burning through pounds of coffee in trial and error. Catherine breaks down what really changes when scaling a roast, focusing on the critical role of preheat temperature, thermal mass, and how to maintain similar roast curves as batch size increases. Along the way, they talk Kenya AA as a use-case, share realistic expectations for profile translation, and offer guidance that applies not just to the Bullet, but to thoughtful, data-driven roasting in general. As always, the episode blends hands-on technical advice with real-world experience, making it valuable for home roasters leveling up and professionals refining their process. Got a roasting question of your own? Send it to [email protected] and hear it answered on an upcoming episode. SEND YOUR QUESTIONS TO: [email protected] NOTES: Follow Our Instagram Account @RIY_POD CHECK US OUT HERE: Coffee Bean Corral YouTube Coffee Bean Corral Website Current Crop Roasting Shop Website Rancher Wholesale Website
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Roaster Tips: How to Scale Up Batch Size Without Wasting Coffee
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