Why is the shop’s own hand-filled coffee always far differently? Experts reveal that 3 most common mistakes are made

More and more small or local coffee shops are opening, and the standard of bringing a cup of "good coffee" is getting higher and higher. Many coffee lovers will buy beans and grind and cook them home after drinking a stunning cup of coffee in the store, but the results are very different from the ones in the store, which is disappointing. Eating Well visited coffee makers, coffee shop owners and other experts, pointing out that the coffee the most people make is very different from the shop, mainly three major errors: "inaccurate measurement", "different sizes of beans" and "using self-made water".

Murilo Santos, founder of Boarding Pass Coffee in Alpharetta, Georgia and responsible for roasting coffee, said that they often meet customers who like it after drinking coffee in the store. They buy coffee beans from them and cook them home and then return to the store to complain that the taste is different and not delicious.

1. Inaccurate measurements are the primary reason pointed out by most experts. Lindsey Sozio, founder of Lavender Coffee Boutique in Denver, said that "precision" is the key to the balance of coffee flavor. Too much coffee or too little water will be excessively extracted. Coffee has a bitter taste, and too little coffee or too much water will be insufficient extraction, and it will be acidic or insufficient taste.

Santos said that coffee industry uses metric systems because it will be more accurate, and measuring with a scale is a good way; Lavazza's New York training manager Kat McCarthy said that even if you use the same soup spoon every time you make coffee, the amount you scoop is different, using a scale can ensure that the amount you use is the same and accurate each time.

In addition, because the coffee that everyone likes has different tastes, the proportion is also important. Adam Kelley, the responsible person of Leopard Forest Coffee Company in South Carolina, said that the ratio of most filtered coffee to hand-filled coffee to water is 1:18, which means 18 grams of water is used for 1 gram of coffee beans, while the store in Santos is 1:17. It is recommended that filtering can start from 1:16 and then adjust according to personal taste.

2. Poor quality of bean grinder

Socio said that the bean grinder has a greater impact on the coffee flavor than that of the coffee machine. A good bean grinder can make the coffee beans grinding the same size, which has a great impact on extraction and flavor. Amy Smith, a partner of EXO Coffee in Tucson, Arizona, recommends using a burr grinder instead of a blade grinder.

Kelly said that following the correct proportions and grinding size helps achieve the optimal soluble amount of dissolved solids, allowing the sweetness of the coffee to balance the acidity and the extreme value of bitterness.

3.Using self-contained water instead of filtering water, Tayler Jackson, executive coffee maker at The Grind, Wytheville, Virginia, said that not using filters will definitely affect the coffee flavor. The chlorine added to the water to the minerals, the old tube lines in the apartment to the piles of scale will make the coffee taste bad, especially cold brews.

Temperature is another key. Experts who visited believe that the optimal temperature of filtered coffee made from household machines is 195 to 201 degrees Celsius (about 90 to 93 degrees Celsius). Kelly said that lower than 195 degrees Celsius (about 90 degrees Celsius) will reduce the extraction rate. The coffee has a sour taste, and higher than 205 degrees Celsius (about 96 degrees Celsius) will make the coffee bitter.