Roasting ground coffee: how long do you keep good coffee beans? which one is good for roasting?

Roasting ground coffee: how long do you keep good coffee beans? which one is good for roasting?

Even coffee from different origins, Ethiopia or Costa Rica, does not mean it should be roasted in the same way. Donahue continued: "there are actually a number of different factors that determine what kind of baking is used, such as variety, altitude and treatment process.

The common one-way breather valve on coffee bean bags is used to discharge excess carbon dioxide to prevent the bean bags from being broken by carbon dioxide. However, if the coffee beans no longer emit carbon dioxide, the carbon dioxide in the bag will be lost through the breathable valve, resulting in a state of pressure-free preservation, stuffing the coffee beans that may have wonderful aroma and taste, and accelerating the deterioration of coffee beans.

Two kinds of washed Ethiopian Yega Chuefei can be considered baking in the same way, but there will be a big difference between washed and naturally dried Yegashafi. So even coffee from the same farm with different heights can be roasted in different ways. "Coffee should be moderately roasted, overbaked and tasteless like dead ash, while underbaked coffee is as tasteless as cereal or hay," Kelso said. It means you have to know the characteristics and origin of your roasted coffee beans. Donahue also believes that it is necessary for coffee roasters to know about raw coffee beans. "even high-quality raw coffee beans are terrible if they are not roasted correctly," he said.

Coffee should be stored in a dry, cool place, not in the refrigerator, so as not to absorb moisture. Coffee beans and ground coffee can be frozen, but the only thing to note is that when you take the coffee out of the freezer, you need to prevent the frozen part from melting and dampening the coffee in the bag. Americans think coffee is better in the refrigerator. But it won't take more than a month. They took out the amount of coffee beans they wanted to drink from the freezer and began to grind and boil them to drink before they thawed.

Packaging that helps store coffee

Tin cans can keep the aroma of coffee for a long time. Plastic bags are fine, but they store less than tin cans. In foreign countries, coffee beans are sometimes sold in tin cans or plastic bags. Vacuum packaging is more conducive to the storage of coffee, making the original flavor more lasting.

Once you open an oil-proof or tin foil-wrapped coffee bag, immediately put the coffee beans or coffee powder in a sealed can; the coffee powder will not get moldy quickly, but will absorb the smell from the air just like coffee beans.