咖啡豆,冷凍保存?/Storing Coffee Beans: Can You Freeze Them?










Does storing coffee beans in the freezer really extend their flavor lifespan?
According to some research and the experience of being a barista, I believe every type of coffee, no matter how you store it, will gradually lose its aroma and taste.
Does freezing coffee beans really keep them fresher for longer? 🧐
Factors affecting coffee quality include: 🔺 Oxygen—Coffee releases carbon dioxide after roasting. If you put coffee in a ziplock bag and don't let oxygen in, the bag might burst. However, letting the bag open or allowing oxygen to continuously enter will make the taste worse. The right coffee container should have a one-way valve for releasing carbon dioxide, which will extend the shelf life of your coffee beans. 🔺 Humidity—Humidity has a negative impact on roasted coffee beans, such as changing their taste and aroma. Therefore, a proper coffee bag should be able to prevent the coffee from getting damp. 🔺 Heat—Heat causes coffee beans to lose their flavor or even develop other unpleasant odors. However, low temperatures are better for storage. The most effective temperature to maintain coffee quality is 0 degrees.
A founding member of the Specialty Coffee Association (SCA) conducted an experiment on this matter. He divided the coffee beans into three groups of samples. 👉 The first group was coffee released carbon dioxide at room temperature for five days. 👉 The second group was coffee frozen for four months. 👉 The third group was coffee frozen for one month. The beans in the second and third groups were freshly roasted and placed in ziplock bags before freezing. The coffee chosen for the experiment was from Ethiopia, mainly because it has a distinctive delicate flavor and fruity taste. These are the qualities expected to show the most significant changes in flavor after freezing. In the end, he found no difference in taste between the groups‼️
As a coffee enthusiast, you now know what to do when you buy too much coffee at once—remember to portion and freeze it! If you enjoyed our article, remember to subscribe and share it with your friends! ❤️
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