Coffee shop basic knowledge how to choose coffee beans

The freshness of coffee beans is the most important factor affecting the brewing quality of coffee, because the activity of coffee beans is hidden in its smell. Fresh coffee beans, like a can full of bubbles and full of taste, can smell a vibrant and pleasant aroma as soon as the bag is opened.

1. Look. Fresh and good coffee beans are round in shape, big, fat and shiny, while on the contrary, they are broken and different in shape.

2. Press. Before buying, put a bean in your mouth or hand and gently press it. The fresh bean has a crisp texture and a light, fragrant sound when it opens. 3. Pinch. It is best to squeeze it with your hands and feel whether it is solid, rather than buying coffee with a crispy shell.

4. Chew. When shopping, it is best to take one or two coffee beans in the mouth to chew, to clear sound (indicating that the coffee has not been damp), teeth and cheeks to stay fragrant is the top grade.

5. Smell. If the coffee bean has lost its fragrance or smells miscellaneous, it means that the coffee bean is no longer fresh and is not suitable to buy.

The purity of coffee beans

The expert candidate for coffee is not to look at the size of the particles, but to grab a handful of individual coffee beans, about dozens of them, to see if each coffee bean has the same color, grain size and shape, so as to avoid buying inferior products disguised as mixed beans. But if it is a comprehensive bean, size, color is different is a normal phenomenon.

In addition, strong fire and medium-deep stir-frying will cause coffee beans to produce oil. If the shallow roasted beans out of oil, it has gone bad, not only reduced aroma, but also astringent and sour taste. In short, when choosing and buying coffee, we should pay attention to its freshness, aroma and miscellaneous flavor, and the ideal purchase quantity is the amount that can be drunk in half a month.

No matter what kind of coffee beans, freshness is an important factor affecting the quality. When shopping, grab one or two coffee beans and chew them in your mouth. If the coffee beans are crisp and sound, and the tooth pods stay fragrant is the top grade, but it is best to squeeze them with your hands to feel whether they are solid, rather than buying empty-shell coffee.

If the coffee bean has lost its fragrance or smells stale, it means that the coffee bean is no longer fresh and is not suitable for purchase.

Freshly fried coffee beans are not suitable for immediate consumption and should be stored for a week to completely release the gas from the beans.

Generally speaking, the best drinking period for coffee is a week after stir-frying, when the coffee is the freshest and the Aroma is the best.