How do coffee novices choose good coffee beans? Where to buy coffee beans?

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As a coffee novice, one of the things that makes you feel the most is "how do I choose a bag of high-quality coffee beans?"

If you are as familiar with computer network applications as the author, you should know how to Baidu your question, so you will inevitably get a lot of answers, but looking at this pile of professional materials, it is a bit confusing. Some materials even require us to take the coffee beans and look at the feel, put them in front of our nose and smell them. Haha. How can we buy coffee beans from ordinary stores and open them for us to explore and study slowly? However, all the information will tell us one thing in common, that is, coffee should be fresh, and this is what most foods have in common.

How to distinguish the freshness of coffee

Generally speaking, the most direct way to know the freshness of coffee is to look at the baking date. Coffee should be placed for at least a week after roasting, when the quality of coffee is stable, but it is a pity that the packaging of coffee beans in supermarkets is not marked with a baking date. (no wonder, it's hard to predict when coffee beans will be bought home when they are put on the shelf. If it is still on the shelf for two or three months, it will be very difficult for anyone to buy it if you see that the baking date is a few months ago, so looking at the baking date is no longer a feasible way.

The author once had the honor to attend the class of Bruno Koo, a famous barista in Hong Kong. Bruno taught us a very simple way to look at the fullness of the packaging. In the past, our school teachers used to tell us not to buy things in sealed packaging such as cans if they were inflated, because they might be broken, but they would not be afraid of them, because they might just be dented in transit, but when it comes to choosing coffee, this rule does not apply, because coffee beans should be considered fresh in plump and plump packaging.

Does the inflated package represent freshness?

Why is it good to pack swollen coffee beans? Because coffee beans will continue to release carbon dioxide after roasting, and this release will become slower and slower over time (of course, otherwise will it be released for a lifetime? XD), so the freshly baked beans will release a large amount of carbon dioxide, which will bulge and swell after being packed in the bag, and the gas will be slowly released through the one-way breathable valve. As time goes on, the coffee bean will release less and less carbon dioxide, but the one-way breathable valve will continue to let the gas out of the package, so the bag will gradually recess over time. So the full package can represent the freshness of coffee beans.

One-way breathable valve

When buying coffee beans, you must pay attention to the one-way breather valve on the package. as mentioned above, roasted coffee beans will constantly release carbon dioxide. so the package must have an one-way breather valve to let the gas out of the package (otherwise you think about how more and more gas accumulates in the package? It will probably explode. If the packaging does not have a vent, it is best not to buy it, because the coffee may not be fresh when it is packaged, or you will have to worry about the explosion of the packaging. Then why one way? In fact, like many other foods, coffee beans will oxidize when they touch the air, deteriorating the quality of the coffee, so it can only be discharged and the air cannot be let in, so the coffee should be finished as soon as possible after it is opened, and the opening should be re-sealed each time the package is opened to pick up the beans.

Where can I buy beans?

Having seen the above, buying coffee beans in the supermarket is the least recommended, because most of them do not have a baking date and can only guess from the fullness of the bags, which is not completely reliable after all. If you want to buy good coffee beans, the author suggests that you can buy it in some boutique coffee shops. Many boutique coffee shops will provide custom-baked coffee beans for customers to buy home for their own taste, because the store is not mainly engaged in this business, the stock will not be large, so freshness will be more guaranteed. Find your own coffee that tastes good, buy coffee beans in that coffee shop, and match your own sense of taste.

Qianjie coffee: Guangzhou bakery, the store is small but a variety of beans, you can find a variety of unknown beans, but also provide online store services. Https://shop104210103.taobao.com