Measuring weight loss in coffee roasting is a great tool to understand your roast level.
Coffee loses bound moisture in the bean during the roast process, which is the primary reason that a batch of 100 grams comes out weighing 85 grams when it's all nice and brown!
While coffee expands in volume due to the expansion of the green bean, it diminishes in weight, mostly because of loss of water weight. Recording this weight loss as a percentage can be a really effective way to get consistent results, or to match the roast you did for a particular coffee when you roast it again, maybe weeks later.
While it's easy when you are working with certain green coffee batch weights, it's a little harder to calculate when you roast 120 grams or 454 grams, about 1 lb.
In this video we have a short explanation of why it is worth the effort to weigh all your batches, roast consistent weights of coffee, and calculate weight loss using a simple formula
#coffeeroasting #homecoffeeroasting #coffeeroastingtips #greencoffeebeans
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Sweet Maria's offers green coffee and coffee roasters for the home. Our sister business CoffeeShrub serves small roast businesses.
