The calorie content in an espresso cup is negligible. There are 1260 Kj (300 Kcal) in 100 grams of roasted and ground coffee. Nespresso Espresso capsules contain an average of 5.5 grams of coffee, and Lungos contain around 7 grams.
The fact that the ground coffee is dissolved in water means that a cup of coffee contains even fewer calories. A 40 ml Espresso contains around 0.6 calories, and a 110 ml Lungo contains around 1 calorie.
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