coffee education library

The largest collection of online coffee roasting education and resources courtesy of the Roastery, Education, Support and Design Teams at Mill City Roasters.

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Roasted Coffee Evaluation: Assessing Quality and Improving Profiles

When you're roasting coffee for retail, it's not uncommon to find yourself in a positive feedback loop. Your customers (typically regulars and, if you're still a...

Understanding Low Acidity Coffee

The most common customer request commercial coffee roasteries get is for low-acidity coffee. Before you run down that rabbit hole, here are a couple of...

Green Coffee Buying Basics

Depending on your coffee quality target, buying green coffee can be either easy or one heck of a lot of work. If you’re roasting very...

Roast Sensory Cues: A Detailed Analysis

We have worked very hard to build the most capable and most thoughtfully instrumented commercial coffee roasters ever built. We record data multiple times per...

What's the best Roast Development Time (DTR) and Finish Temperature?

I’ve been asked this question in class and seen it online innumerable times. "What has the greatest impact on a finished roast, the roast development...

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coffee roasting for beginners

Roaster School Video Series

Roaster School: Episode 1, Equipment overview

Roaster School: Episode 2, The First Part of the Roast

Roaster School: Episode 3, From Yellow to First Crack

Roaster School: Episode 4, Deciding When the Roast is Done

Educational Shorts

Coffee Density/Moisture and Charge Temp

Understanding charge temps

Demystifying Drum Speed

How Roast Level Affects Extraction

How Water Temperature Affects Extraction

helpful guides for new owners

Coffee Roaster Installation & Maintenance Videos

How To Grease Bearings On Your Coffee Roaster

Uncrating and installing an MCR-6, 6 kilogram coffee roaster

Uncrating and installing an MCR-20, 20 kilogram coffee roaster

Seasoning the drum of a new coffee roaster

helpful guides for new owners

Roast along videos


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