What is the effect of consistent temperature on espresso extraction?

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Consistent temperature during espresso extraction is crucial for achieving uniform flavor and quality in the final cup. When the brewing temperature is stable, it allows the coffee grounds to extract at an optimal rate, leading to a balanced extraction of desirable flavors and compounds. This consistency reduces the likelihood of flavor imbalances, ensuring that both the acidity and sweetness are well integrated, and that bitterness is kept in check.

When espresso is brewed at varying temperatures, it can lead to uneven extraction. Cooler temperatures may under-extract, resulting in sour or acidic notes, while excessively high temperatures can lead to over-extraction, imparting bitterness. The ideal brewing temperature range for espresso generally falls between 90 to 96 degrees Celsius (194 to 205 degrees Fahrenheit), and maintaining this temperature ensures that the extraction process remains within these favorable limits, enhancing the overall quality of the coffee.

Thus, consistent temperature is vital for delivering a consistently great espresso experience, which is why achieving this stability is a key focus for baristas when preparing espresso.

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