Do you know how to pick and store coffee beans?

First, the purchase of coffee beans.

01.Smell: Hold the coffee beans close to your nose and smell them, if you can smell the aroma of the coffee, it means that the coffee beans are very fresh. If the aroma is faint or has begun to show a greasy taste, it means that the coffee beans are not fresh at all.

02.Look: There are currently more than 100 kinds of coffee in the world, so before buying, be sure to choose your favorite coffee bean origin and variety, and if you buy online, be sure to shop around.

When choosing a coffee bean, you also need to look at its roasting date, the peak of flavor will be reached about a week after the coffee is roasted, and after a month, its flavor will start to decline, and the longer the time, the bitter taste of the coffee will increase.

03.Peeling: You can try to gently peel the coffee beans with your hands, if there is a crunchy sound and citrus, it means that it is fresh; If it is difficult to peel it off, it means that it is not yet mature.

Second, the storage of coffee beans.

01.Ground coffee into powder.

Coffee beans that have been ground into powder have a shelf life of 3 days, and if they are refrigerated in the refrigerator, they can generally be stored for an extra week. However, the contact area between the ground coffee powder and the air increases, and the flavor will be lost in two or three days.

02.Sealed coffee beans.

Unground coffee beans generally have a shelf life of less than one or two years, but this is when left unopened. If it is an unopened coffee bean, we can put it in the refrigerator, and the decrease in temperature will inevitably slow down the oxidation rate of the coffee beans.

03.Coffee beans after opening.

After opening, the coffee beans are generally placed in an airtight jar, because the coffee beans are very delicate and cannot be in contact with the air for a long time, otherwise they will get wet. Once the coffee beans are wet, they will easily spoil and mold, which will greatly reduce their shelf life and is not good for your health. Never put coffee beans in the refrigerator and store them in a dry and cool place.

Therefore, when buying coffee powder or coffee beans, the principle is to buy a small amount and multiple times, and it is recommended to buy about 2 weeks of coffee beans at a time. Even if the coffee beans are high-quality and expensive, after 3 months of baptism, they will not taste good.

In addition, the correct scooping method will also affect the quality of the coffee beans, remember to use poured coffee beans when taking them, otherwise the carbon dioxide in the container will be poured out, and it will be more and more difficult to regenerate. The correct way to do this is to use a long spoon and reach to the bottom of the container to pick up the beans, so that the carbon dioxide is not lost quickly.

Step 1: Choose fresh beans.

Choosing a café or shop where you can store your coffee beans properly, it's not right to put them in the sun or in a dirty container, you need to seal them and put them in a cool place.

Step 2: After roasting, it is best to use up the beans within a week.

Buy fresh beans in small quantities. Otherwise, if you buy too much at a time, you will lose your original flavor after a long time, and in grams, buying 250 grams at a time is considered an affordable portion.

Step 3: Preserve the beans properly without losing their taste.

The beans should be kept fresh for up to about 2-3 weeks at room temperature, but they must be kept as free of air as possible and placed in an airtight container.

If it is more than 3 weeks, it is best to store it completely sealed and stored in the refrigerator, and the quality of the storage in an airtight jar will be reduced by half than usual.

After the coffee beans are roasted, the aroma is strongest on the 3rd and 7th day, and then it will last for 21 days, at this time, the coffee beans should not be placed in a place exposed to sunlight, high temperature and humidity, and it is best to store the coffee beans at 20 to 23 degrees Celsius. In order to facilitate preservation, you can also choose the packaging of vacuum and one-way valve device when purchasing, so that there will be no air running into the package and affecting the quality of coffee beans. It is recommended that coffee beans should be drunk within two weeks as soon as they are unpacked to avoid spoilage.

1. When choosing coffee beans, first look at its appearance, generally good coffee beans are relatively complete and full;

2. Preserved coffee beans have a strong aromatic smell, and if there is no preserved coffee beans, the smell is not good;

3. When buying coffee beans, you can press them by hand, if they are high-quality, they will have a crispy sound, and there will be fragrance after cracking;

4. The color and smell of coffee beans produced in different origins are different, for example, the coffee beans in Brazil and other places are relatively full, so the taste is sweet and not sour; Coffee beans eaten raw in Colombia and other places will produce characteristics such as sweet and sour due to environmental reasons, so it is necessary to choose according to the region when choosing.

5. Generally, the dark and black coffee beans have a bitter taste when boiled, and the seriously yellow ones have a sour taste;

6. If you choose coffee beans with packaging, you can choose a small hole on the packaging bag, which is a one-way discharge valve, which can discharge the oxygen in the packaging bag in one direction, which can help avoid a large amount of oxygen contact with coffee beans and ensure the quality of coffee beans.

In addition, coffee is a consumable product, and it is not advisable to stock up in large quantities, as improper storage will directly lead to the deterioration of the coffee taste. It is best to freshly grind and brew coffee beans, and do not grind too much at one time, otherwise these powdered coffee powders will be directly exposed to the air, and contact with a large area of air will be more likely to oxidize and deteriorate, so you still need to grasp the amount.

It may vary depending on the ambient temperature, humidity, packaging method, and storage method. In terms of the environmental conditions along the coast of China, coffee beans are stored in a one-way vent bag and placed at room temperature, and the coffee beans are considered fresh for two weeks after roasting. Roasted coffee beans, which can be understood as cooked food, should be fresh, of course!

Except for a few fermented and dried foods that have been specially processed for the purpose of long-term preservation. Most of the food that is eaten in the body must be fresh. Drinking coffee in your mouth is certainly no exception.

Coffee beans are the seeds of coffee cherries, and green beans are easy to preserve like uncooked grains. Roasted cooked beans are like roasted nuts that can be eaten directly, such as walnuts, peanuts, and pumpkin seeds. If it is stored in a room temperature environment, it is easy to produce fuel consumption odor.

Second, in addition to roasting to order, it also provides the freedom to choose the roasting degree: the roasted coffee begins to decay and lose its flavor. Advertises baking to order, but doesn't let you choose the degree of baking. It may be that a batch of baking is put away, and there are orders before slowly shipping the way in the business.

Judgment. Second, judging from the coffee beans.

1. Smell: Fresh beans only have aroma, aroma, aroma, and smell, and if they smell the smell of oil consumption, they must not be fresh coffee beans.

2. Appearance: This is only applicable to darker roasted (aroma roast medium dark roast dark roast) coffee beans. If you look at the bean table before grinding, the matte oiliness means that the coffee beans are not fresh.

It's easy to learn to tell, it's easy to see coffee beans on the market that only have an expiration date, and you can buy them and look at them. Light roast (equivalent to aroma roast shallow medium+) coffee beans are more difficult to tell from the bean table whether they are new or not.

Smell: Hold the coffee beans close to your nose and smell them to see if you can clearly smell the aroma of the coffee beans, if so, it means that the coffee beans are fresh enough. On the other hand, if the aroma is weak or has begun to show a greasy taste, it means that the coffee beans are not fresh at all.

It's impossible to make a good cup of coffee with such beans.

Spread the coffee beans on your hand to determine the origin and variety of the coffee beans, and also determine whether the coffee beans are roasted evenly. Roasted beans are also uniform and smooth.

Peeling: Take a coffee bean and try to peel it by hand, if the coffee bean is fresh enough, it should be easy to peel off, and it will have a crunchy sound and feel. If the beans aren't fresh, you'll find it seem like you'll have to struggle to open a bean.

Another important thing to observe when peeling the coffee beans is to see if the heat is even during roasting. If it is uniform, the color of the outer and inner layers of the beans should be the same. If the color of the surface layer is obviously much darker than the color of the inner layer, it means that the fire power may be too large during roasting, which will also have an impact on the aroma and flavor of the coffee beans, so we must pay attention to it, for the coffee beans must be selected, high-quality coffee beans can allow us to better brew high-quality and delicious coffee beans to eat, so that the benefits of eating are very many, it is very meaningful for our health, and it is a delicious taste that we cannot miss.

How coffee beans are selected and stored.

The coffee world of mint.

CQI Coffee Quality Appraiser and Coffee Practitioner Contributor.

Coffee from the column is a way of life.

Friends who like to drink coffee have the experience of buying coffee beans, drinking them themselves or giving them to friends. I am often asked how to choose coffee beans? How do I store my coffee beans? This article will give you the answer.

1. How to choose coffee beans?

The choice of coffee beans is one of the topics that everyone is most concerned about. If you want to buy the right coffee beans, you should refer to the type of coffee you like to drink before buying. If you prefer milk coffee, you can choose a blend when choosing coffee beans.

If there is a hint of roast level, select Medium and dark roast.

Espresso is used in coffee shops to make espresso, which is what we call a coffee base. It is usually a blend of three or four coffee beans and is characterized by a balanced taste of bitterness and acidity, which is perfect for adding fresh milk to make a delicious cup of coffee with peasant.

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I like coffee with flower and fruit flavors, and I prefer African production areas. Examples: Ethiopia, Kenya, Uganda.

I like nuts and chocolate flavors, and I pay attention to the Americas. Examples: Brazil, Colombia, Costa Rica.

I like woody and spice-based coffee, and Asian production is the best place to go. For example: Indonesia, Vietnam, Yunnan.

2. Choose coffee beans or coffee powder.

If you have a grinder at home, it is recommended to buy coffee beans. As the coffee beans are ground into powder from the beans, the aroma quickly dissipates within a few minutes. Therefore, if you want to drink a cup of coffee with a good aroma and taste, the best drinking habit is to grind the coffee beans before drinking.

In order to facilitate the drinking of coffee powder directly friends, it is recommended to choose a small package or hanging ear coffee, and drink it in a short time.

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3. Storage method to lock the flavor of coffee beans.

Once the beans are roasted and matured, the flavor gradually dissipates with temperature, storage and time.

Choose a clean, airtight and dry container or bag with a one-way vent valve for coffee beans storage. Store coffee beans in a dry, dark, and ventilated place. Every time you open the container to take the coffee beans, they should be sealed and stored in time.

If you don't drink a lot on a daily basis, purchasing small packets is the best option.

If you have already purchased a large package of cooked coffee beans, it doesn't matter if you can't consume them in a short period of time. It can be divided into small portions, sealed and placed in the freezer layer of the refrigerator to lock in the flavor. Just take it out and grind it before use.

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4. Taste period and shelf life.

Coffee itself is a fruit, and the fresher the coffee, the more prominent the flavor performance. The ground coffee or coffee beans we buy will be marked on the outer packaging.

1. Any storage tank that meets the requirements of food-grade materials can store coffee beans. If you have a choice, glass will be better than plastic containers.

2. It is best to store it separately according to the type of coffee, even if the coffee tastes similar, try not to put it in the same plastic container, because this will mix the original aroma of the coffee, and then it will be very difficult to brew the coffee with the original taste.

3. When storing coffee, put the whole bag of coffee into the container together, so that it is convenient to replace it next time you want to put other coffee.

1. If the roasted coffee beans are: the most influential elements of the roasted coffee beans: oxygen, moisture, light, heat, and peculiar smell, so the best environment for storing coffee beans is a dry, dark, and tasteless place isolated from oxygen.

The shelf life of roasted coffee beans is greatly reduced, only 5-6 months. The shelf life can only ensure that the coffee beans have not expired, but only during the best tasting period can the coffee beans be sold to perfectly taste the aroma and fruitiness of the coffee beans, and the best tasting period is generally 15 to 30 days.

2. If the coffee beans have been opened: the opened coffee beans need to be sealed with a sealed can, vacuum tank or a light-tight container with a one-way exhaust valve, and stored in a cool and dry place.

3. If it is an unopened coffee bean: The unopened coffee beans can be put in the refrigerator, and the temperature can slow down the oxidation rate of the coffee beans. It is also suitable for storage in a cool, well-ventilated environment with a temperature of 18°C-22°C.