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Understanding The Potato Defect

What is the Potato Defect in Coffee? Potato defect, also called PTD, is a fault found in the unroasted coffee that develops when the coffee is still in cherry form on the trees. It affects the taste and aroma of roasted and ground coffee. Is it safe to drink? PTD is not toxic to humans and only affects the taste and aroma of coffee. How can we identify it? The good thing is you do not need to be an “expert taster” to find it. PTD smells and tastes like a raw potato or sometimes described as iceberg lettuce and dirt. When a barista grinds a batch to brew, the odor can be identified. Potato defect is very strong and...

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