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What is the best way of keeping coffee fresh?

Usually the shelf life of roasted coffee beans is 5 to 6 months, and the best tasting period is usually only 30 days.

Just after roasting the coffee beans is not drinkable, about seven days degas time is more reasonable, the flavor of coffee beans in about 7 to 10 days to reach the best time for tasting, after a month will gradually reduce.
Drink freshly roasted coffee beans within a month, preferably not more than 2 months.

Coffee beans have some of these enemies-

Oxygen

Humidity

Temperature

Light

So the keys to preserve freshness are-

Seal

Keep Away from Light

Moisture

Exhaust

Based on the above theoretical principles, then we need to choose the right utensils in terms of containers for preserving coffee beans.

  • Keep in Original Bag

Most coffee beans now use one-way vent bags lined with food contact grade aluminum foil.
The aluminum foil blocks out light and air.
The function of the one-way venting valve is to expel excess carbon dioxide so that the bag will not rise and break without opening.

Seal the bag immediately after removing the coffee beans and try to squeeze out as much excess air from the bag as possible to minimise contact between the beans and the air (there is a one-way exhaust valve on the bag, only air can come out, not in), store airtight in a cool, dry place at room temperature.

  • Storage in Sealed Jars

The quality of the sealing jar must be good. Do not buy a transparent jar for aesthetic reasons; light increases the rate of coffee oxidation.
If you can use up a tin in a few days then there is no consideration for extending the shelf life.

  • Vacuum Jars Storage

A vacuum canister can evacuate the air from the canister, creating a vacuum. The vacuum is free of oxygen and water vapour and is a good way to store coffee beans. However, it is important to note that this method also only delays the freshness of the coffee beans, and does not guarantee that they will be fresh in the long term.
If you are buying, you should choose a reliable one, as poor quality is not as good as the original packaging.

  • Fridge Storage
  1. Not in the fresh layer, but in the frozen layer.
  2. It should be well sealed.
  3. After removing the coffee beans from the fridge, take out a portion to quickly grind and brew the coffee, and put the rest back in the fridge immediately.
  4. It’s recommended to keep the coffee beans in a suitable environment for a few days until their flavour has developed and then put them back in the fridge.

If you are sure that you will be travelling for a long time or not drinking for a short period of time, it is not recommended to put the coffee beans in the fridge.

All of the above methods are only suitable for extending the optimum serving period of coffee and are not suitable for keeping for too long, so it is recommended that when buying coffee beans you do not buy more than 340g/0.8lb at a time.
Drink fresh coffee beans within a month and do not store them for more than 2 months.
Freshness is the life of a coffee bean.


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