Coffee beans storage temperature factory coffee beans coffee purchase roasting date shelf life coffee beans
The ideal storage temperature of coffee is 7 ℃. Remember, never put coffee in the refrigerator, because too low temperature will make the inside of the coffee crystallize, thus absorbing the moisture inside the coffee and making the coffee taste bad. You'd better store your coffee in a cool, dry place and stay away from the sun. Never put coffee with other strong foods or chemicals. The best way is to store the coffee in a sealed plastic bag. If it is not sealed, the coffee will absorb all the flavor around it like a sponge.
When buying coffee, make sure it is in a sealed bag. The sealed bag must be equipped with an one-way vent to help coffee release carbon dioxide (coffee usually releases a certain amount of carbon dioxide after roasting). You also need to pay attention to the baking date on the bag. Coffee should not be stored for more than 6 weeks after roasting (some people think it is 3 weeks). The surface of old coffee beans will condense grease. If you don't smell the pungent aroma when you just open the bag, the bag of coffee beans is likely to have gone bad. The best way is not to buy too much coffee at a time, the amount you buy depends on your actual use.
Coffee storage:
1. To keep coffee beans fresh, you need to stay away from: sun, air, water, heat, coffee bags with grease
two。 Be careful not to use transparent bags to store coffee. Sunlight will speed up the deterioration of coffee beans.
Coffee purchase:
1. View baking date
two。 View origin (country, region)
3. Check the variety of coffee beans (guaranteed to be 100% Arabica coffee)
4. Check to see if the bag has an air outlet.
5. Don't buy too much at once
6. It is best to buy coffee beans directly from coffee roasters or boutique coffee shops.
7. Do not buy coffee in transparent packaging
8. Try different kinds of coffee each time to train your sense of taste
9. Note that coffee can also be too fresh! Coffee needs to rest for a few days after roasting to form the final taste, which is particularly important for making espresso
10. Buy whole coffee beans, go home and grind them yourself.
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By observing Crema, we can judge the freshness of coffee beans, the completeness of coffee extraction and the uniformity of coffee extraction. How to tell if the coffee beans are fresh: although you can tell that the beans are fresh when you observe a lot of foam, there is also a possibility that Robusta is high. So we can observe the state of foam precipitation instead. If they are very fresh beans
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The idea of roasting coffee over fire probably came from Ethiopia in the 13th century. In the following 700 years, people did not make much improvement to the roasting techniques of coffee. At that time, most people baked coffee at home or in coffee shops and made coffee directly from freshly baked beans. It was not until the mid-19th century that cylindrical coffee roasters were invented. From the first opening
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