Coffee prices in the EU were up 16.9% year-on-year in August, according to the latest figures from the bloc's statistical office.
The soaring cost has made "this morning staple almost a luxury," Eurostat said in a report released on Thursday.
The price of fresh whole milk was also on average 24.3% higher, while that of fresh low-fat milk increased by 22.2%.
Sugar prices were up 33.4% on annual basis in August, making a single cup of coffee all the more expensive.
Finland saw the highest annual jump of 43.6% in coffee prices, while Hungary posted a 51.7% increase in prices for whole-fat milk, according to Eurostat data.
The highest annual inflation in sugar prices-109.2%-was recorded in Poland.