How to maintain the freshness of green coffee?

– PROTECT THE ORIGIN –

How to maintain the freshness of green coffee? To ensure the quality of coffee cups, preserving fresh green coffee is a difficult problem that suppliers must solve. Not only have difficult farming conditions, but fresh coffee beans are also “irritable” in preservation and flavor retention.

The importance of preserving fresh coffee

Fresh coffee is the material to make an attractive cup of coffee. Only qualified raw materials can create the most “standard” finished products.

Therefore, preserving fresh coffee plays a very important and urgent role, is the key to determining the quality of the cup. Good storage will maintain the characteristics of the coffee cup, while poor storage can reduce the quality of the coffee.

Because of this leading position, roasters, and traders, … are very interested in taking care of and preserving fresh coffee.

Fresh coffee also has a shelf life. After this period of time, its quality will decrease markedly, may be moldy, and flatten the taste.

Suppliers always want to extend this time as much as possible.

Factors affecting the preservation of fresh coffee

Green coffee is susceptible to several factors during transportation and storage. The 5 most common factors are humidity, temperature, oxygen, light, and time.

Temperature

Temperature affects the water in coffee. It can cause condensation in the bag and the surface, creating a humid environment. This reduces the subtle aroma and flavor of the coffee beans. In addition, temperature also affects the respiratory process and changes how the water in green coffee works.

This means that if the green coffee is not stored in a reasonably cool environment, its flavor will degrade over time.

Humidity

Ambient humidity can affect the equilibrium of green coffee beans.

In essence, if the air is too dry, moisture can actually escape from the coffee. Conversely, if it is too moist, the beans will absorb the excess moisture, resulting in effects similar to fermentation, possibly even causing mold or mildew.

Oxygen

Besides moisture damage from exposure to extreme heat and/or humidity, oxygen is also a factor that reduces the freshness of green coffee.

When coffee is oxidized for a long enough period of time, its aromatic compounds dissipate, creating an undesirable “raw” and “stale” flavor.

Light

The concentrated light causes the green coffee beans to undergo a process called “photodegradation”.

This is where photons slowly destroy organic particles over time, including the non-volatile compounds that contribute to the final composition of the roasted coffee.

Time

Although green coffee is less volatile than roasted coffee, time is still a factor in reducing coffee quality.

However, time is not the fundamental factor in coffee degradation; instead, it measures how the previous four factors affect it.

Over a prolonged enough period of time, oxygen, humidity, and heat will cause green coffee to lose its milder and more delicate aroma.

How to maintain the freshness of green coffee?

Under these effects, how long is fresh coffee’s “shelf life”?

For most specialty roasters, fresh coffee can be aged 6-12 months.

After a year, the next harvest arrives at the roaster. The coffee is considered “old-season”. Roasters will not prioritize these labeled coffees.

“The generally accepted time frame for green coffee to be considered fresh is one year from the time it is processed and shipped, provided it is packaged,” says Ahmed Mahyoub, Head of Operations at Mocha Mill in Yemen. in sealed packaging.

Exposure to heat, light, humidity, insects, and air are the factors that contribute the most to the degradation of green coffee.

However, freshness varies depending on the exact coffee in question.”

This means that the above time period will vary for different types of coffee. There are varieties that can have a longer shelf life, while others can only be stored for a short time.

Method of preserving fresh coffee

Coffee experts have done a lot of research on this issue and concluded that using quality packaging is essential.

Mike Mamo, managing director of Addis Exporter in Ethiopia and owner of the Telila laundry station in the Jimma region of Ethiopia, says the sooner, the better. Origin is the best place to start.

Mike adds: “Ecotact sealed bags are an ideal green coffee storage solution. We use Ecotact 80 bags for parchment, green coffee, and anaerobic processing. They not only help ensure quality that we don’t even have to worry about them coming apart on the way to our destination – these bags are very sturdy”

Above, 43 Factory Coffee Roaster has just sent readers information on coffee preservation and answered the question, “how long does fresh coffee last?”. Follow us for more helpful information.

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