Posts
Profiling 101: Lessons learnt after 100 batches of coffee
We're 6 months into roasting. While that's not much time in the grand scheme of things, after nearly 100 batches of coffee on this little Proaster THCR-01, it felt right to reflect and share some lessons learnt while profiling. This blog post is for other newbie roasters or hobby roasters looking for foundations to build their drum profiling system on. Here's a TLDR for those with less patience or time on their hands. Taste your coffee with other professionals. When you build heat momentum, keep it. Taste drives profiling, not...
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Drop 4: How does the soak in roasting affect Peak RoR and total roast time
Tune in soon for updates on drop 4! There's still time to purchase the drop here. Instructions for participants Wait until the coffee is at least 10 days rested before brewing. Ideally, the coffee is 18-20 days rested. Brew each coffee (your way) and take notes on flavors, roast character, and structure. No you do not have to brew each coffee on the same day. If you do want to do this, I propose you try cupping them (see Base Coat IG for a how to). When tasting, think about...
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Drop 3: A descriptive study on Maillard versus development time
(11/21) Update: We've added some experiment results to our writeup and added a profile reveal. We are closing the quiz too. A larger writeup about coffee structure is still in the works! Profile Reveal and Quiz Results This quiz turned out to be hard! I think part of that was the terminology we used was very "roaster-minded" and for that we apologize. Moving forward, we'll make sure we're either setting up the question better or helping catch folk up to roast terminology before we go asking you "what had the...
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Drop 2: Airflow's impact on weight loss in a Colombian Chiroso
(10/28) Update: We've added some experiment results to our writeup. Since we're effectively playing with 9 response variables (data points), this is very inconsequential to what statements we can make about airflow and moisture loss. The initial results do beg two larger questions though: 1) are we measuring properly? I am curious about batch size as a result of this work along with what other measurements might ensure accuracy (batch moisture content for example). 2) does pressure buildup in the barrel have a significant influence on weight loss? This comes from...
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