The thick golden foam that sits on top of an espresso shot after a fresh pull. Crema is a bubbly bouquet of aroma that enhances the flavor of your espresso. The quality of the shot is often associated with the crema. A nice, thick, and colorful crema means the shot was pulled correctly and the beans were excellent. If the crema is thin or dissolves quickly, then there is an issue with the quality of the shot. Not all great espresso shots have an amazing layer of crema. Here's why, if you have darker or lighter roasted beans, crema is harder to create because the oil levels are too high or low. Additionally, if the beans have been sitting for a while, they will have "gassed" much longer than freshly roasted beans. In the end, it is nice to see crema resting peacefully on your espresso, and if you don't and still enjoy the flavor of your beverage, it's not a big deal. Remember that crema is a great indicator and not the confirmation of a great shot.
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