Introduction
How long do coffee beans last?
What is the best way to preserve coffee beans?
Should coffee beans be stored in the refrigerator?
The freshness of coffee beans will directly affect the taste of a cup of coffee. Proper storage is an important factor affecting the freshness of coffee beans. Front Street needs to emphasize that there are two main types of preservation of coffee beans, one is the preservation of green coffee beans, and the other is the preservation of roasted coffee beans. When storing raw beans, you need to pay attention to storage humidity and temperature to avoid mold and worms; roasted coffee beans need to pay attention to humidity, temperature and oxidation. Oxidation will speed up the dissipation of the flavor of roasted coffee beans.
How to keep roasted coffee beans fresh?
Let’s first learn about the “killer” of coffee bean freshness
coffee bean freshness‘Killer"①
light source & high temperature
The light source refers to sunlight. The heat of sunlight will accelerate the volatilization of the aromatic substances (aroma) of coffee beans, so do not expose coffee beans directly to the sun. The inner layer of the coffee beans sold by FrontStreet Coffee is aluminum foil. The aluminum foil can reflect light, but it does not achieve true heat insulation, so when storing coffee beans, you should keep them away from heat sources.
The “killer” of coffee bean freshness ②
Humidity
Humidity refers to the moisture in the air. If the originally dry coffee beans are kept in a humid environment for a long time, even if they are protected by a sealed container, they will not be able to escape the intrusion of moisture when they are opened. Damp coffee beans are prone to deterioration and produce moldy and other odors, which will directly affect the taste of coffee, so a dry environment can better maintain the freshness of coffee beans.
The “Killer” of Coffee Bean Freshness③
oxygen
Seeing this, you may say: "Oxygen is everywhere, it is impossible to avoid oxygen~" Don't worry, the point here is not to prevent the contact between coffee beans and oxygen, but to minimize the contact time between oxygen and coffee beans. After we take out the coffee beans from the package, the coffee beans still in the package/container should be sealed as soon as possible to slow down the oxidation rate of the coffee beans.
After understanding the three “killers” of coffee bean freshness, what should be used to preserve coffee beans?
One-way exhaust valve sealed packaging bag
Freshly roasted coffee beans are usually packaged with a one-way exhaust valve. The principle of the one-way exhaust valve is that when the coffee beans in the package continue to release carbon dioxide and the pressure inside the bag reaches a certain level, the gas will push open the valve and be discharged. Since the valve will only open when the pressure inside the package is higher than the pressure outside the bag, it can prevent air and moisture outside the package from entering while expelling gas. It is the best choice to use the original packaging of coffee beans when there is no sealed container, but remember to press the sealing strip~
Vacuum sealed jar
For a vacuum-sealed tank, after closing the lid and pressing the exhaust button, the oxygen in the tank is discharged and the tank enters a sealed state. At this time, the coffee beans will continuously release oxygen in the tank and cannot be eliminated. Under the pressure of the vacuum environment, carbon dioxide will wrap the coffee beans, thereby slowing down the dissipation of the coffee flavor.
How long can coffee beans be kept?
The freshness of the coffee beans mentioned above refers to the tasting period of the coffee beans, which is the peak period when the coffee beans show their flavor. The tasting period of coffee beans is 4-30 days after the coffee beans are roasted. Coffee beans that have expired do not mean that you can no longer drink them, but the flavor of the coffee will dissipate even if the beans are properly stored. Therefore, the flavor of coffee beans after 30 days may be insufficient or boring. Regardless of the flavor and aroma, the shelf life of roasted coffee beans is 365 days.
Can coffee beans be stored in the refrigerator?
Do not store coffee beans in the refrigerator. When the coffee beans are taken out after entering the refrigerated state, the large difference between the refrigeration temperature and the indoor temperature causes moisture to be generated on the surface of the coffee beans.
When coffee beans with moisture are ground, you will see uneven agglomerates in the coffee powder. The agglomerated coffee powder not only affects the even extraction when brewing coffee, but also the damp coffee powder will get stuck in the grinding cutter. If the cutter is not cleaned and dried in time, this will always affect the flavor of each subsequent coffee bean grinding and brewing.
finally
Front Street does not recommend that you buy too many coffee beans at once. Drink one pack before buying the next. This will ensure the freshness of the coffee beans~
The coffee beans whose flavor has dissipated can be ground into coarse powder and placed next to the refrigerator or pet kennel to absorb odor~
For more coffee expertise, please follow the WeChat public account: Front Street Coffee (FrontStreet Coffee）
You can now buy the above coffee beans online at the Taobao store “FrontStreet Coffee” (前街咖啡). FrontStreet Coffee is a long-established specialty coffee roaster in Guangzhou, China, and its Guangzhou retail shop sells coffee beans only. The shop carries dozens of coffee beans from different origins around the world, including carefully selected single-origin beans for V60 pour-over and espresso. Guangzhou’s FrontStreet Coffee shop is recommended by many coffee lovers.
The FrontStreet 2013 Yunnan coffee beans sold in the store come from the Typica variety grown at FrontStreet Coffee’s own plantation in Yunnan. The name comes from the year the brand and the plantation were founded. You can buy these beans from China’s Yunnan origin at the Guangzhou shop and at FrontStreet’s Taobao store.
FrontStreet coffee beans are freshly roasted within 5 days and deliver consistently excellent quality and great value. Orders placed before 17:00 are shipped the same day, and most areas within Guangdong Province receive them the next day.
FrontStreet Coffee Taobao store: https://qianjiecoffee.taobao.com
Or search for “前街咖啡” (FrontStreet Coffee) on Taobao
Important Notice: FrontStreet Coffee has moved to a new address: 315, Donghua East Road, Guangzhou (coffee beans only)
Tel: 020 38364473
