What is the 30 second rule for espresso?
What is the 30 second rule for espresso? The 30-second extraction rule suggests that a well-balanced espresso shot should take approximately 25-30 seconds to extract when using 18-20 grams of ground coffee and yielding about 30-40 milliliters of espresso. That means 4 to 5 shots of espresso puts you right near the upper safe limit, […]
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