Forum Coffee Roasting

Gas pressure changes on a 1kg roaster: small detail or big effect?

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Recently I have been discussing gas pressure changes on a 1kg roaster with several coffee people and nobody gives the same answer. Some treat it as small detail, some say it changes the whole workflow. I am not looking for textbook reply. I want to know whether gas pressure changes on a 1kg roaster gives meaningful difference once you repeat it over many cycles.

Would you keep gas pressure changes on a 1kg roaster in your normal process, or only for specific coffees and situations?

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I think the bigger issue is not gas pressure changes on a 1kg roaster itself but whether your baseline is stable. If baseline keeps moving, then every experiment around it gives mixed signal.

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From my side this helped only on certain coffees, not on every lot. When the coffee is already forgiving, gas pressure changes on a 1kg roaster does not change much. On difficult lots the effect is clearer.

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I disagree a little with people who say gas pressure changes on a 1kg roaster is only a small detail. Small detail alone maybe yes, but several small details together can move the cup a lot.

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What helped me most was keeping short notes each time. Without notes, discussion about gas pressure changes on a 1kg roaster becomes memory battle and not real evaluation.

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For gas pressure changes on a 1kg roaster, I only trust conclusion after I see same pattern several times. One successful run can be accident. Repetition is what make the lesson useful.

Gas pressure changes on a 1kg roaster: small detail or big effect?

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