Storage period and method of coffee beans with basic knowledge of coffee

A drop of Qinxiang entrance, but there are all kinds of things in the world. The faint taste is not as good as the honey sweet that Huanglian has not yet, but all kinds of flavors are endless. How should such a delicious drink be stored? What is the change in coffee beans from roasting? Here is the best storage method to teach, after learning to let the aroma of coffee continue to spin in the air.

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. You should have a crisp sound (indicating that the coffee is not damp) and the fragrance on the teeth and cheeks is the top grade, but it is best to squeeze it with your hands to feel whether it is solid, rather than buying coffee with a crisp shell. 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 full release of the beans. Generally speaking, the best drinking period for coffee is stir-fried, when the coffee is the freshest and the Aroma taste is the best. In addition, the purity of coffee beans is also another consideration. The expert candidate for coffee is not necessarily to look at the size of the particles, but to grab a handful of individual coffee beans (Regional Coffee), about dozens of portions, to see whether the color of each single bean is the same, and whether the particles are similar in size and shape, so as to avoid buying shoddy products disguised as mixed beans. But if it is a synthetic bean (Blended Coffee), it is a normal phenomenon that the size and color are different. In addition, heavy heat and medium-deep stir-frying will cause coffee beans to produce oil, but if the beans are lightly fried, they have gone bad, not only reducing aroma, but also astringent and sour taste. In short, when buying coffee, we should pay attention to its freshness, aroma and whether it is stale or not, and the ideal purchase quantity is to be able to drink it in a month.

Factors affecting Coffee Preservation

The factors that affect the preservation of coffee include light, oxygen, temperature and temperature, so it is better to keep these four factors as low as possible during preservation.

The time change of coffee after roasting

The roasting degree has a direct effect on the preservation of coffee. The deeper the roasting is, the faster the oxidation deterioration is, and the lighter the roasting is, the slower the oxidation deterioration rate is. The unbaked raw beans can be preserved for 3 to 5 years or even longer in the proper environment. Irresistibly, the natural exhaust decay of roasted coffee.

Here are the changes in the storage of coffee beans

Packaging material

Unidirectional exhaust aluminum bag general aluminum bag soft transparent bag PE hard transparent bag PP sealed iron can vacuum packaging

Preservation period

Up to now, there are many arguments about how coffee beans should be preserved. The shelf life indicated by various manufacturers ranges from two weeks to 18 months, so how long can coffee be preserved?. The following is an one-year preservation test for coffee beans, which can be used as a reference for coffee lovers.