The roasted coffee beans are easily oxidized by the oxygen in the air, which makes the oil quality deteriorate, and the aroma is also volatilized and disappeared.
If the coffee beans have been opened, they need to be sealed in airtight jars or with special sealing strips and then stored in a cool and dry place.
If it is unopened coffee beans, it is recommended to put them in the refrigerator, because the lowering of the temperature will slow down the oxidation rate of coffee beans. Try not to place it in a place that is too dry (humidity below 54% is too dry).
Extended information:
Tips for choosing coffee beans:
1. Packaging: Coffee beans cannot be exposed to strong sunlight, and cannot be placed with volatile things. These two points indicate that coffee beans are best sealed in boxes or jars that are not exposed to light. In a sealed bag with a one-way valve device.
2. Color: Coffee beans will show different colors due to different roasting degrees. The flavor of the coffee itself will also change. The light-colored coffee beans have a strong sour taste, but with the deepening of the roasting degree, the sour taste in the coffee beans will gradually disappear, and the bitterness will be graded. rise.
3. Freshness: coffee beans begin to oxidize after roasting, and coffee beans also have the characteristics of absorbing moisture and taste, so try to buy fresh coffee beans.
4. Fresh coffee beans smell rich in the original aroma of the coffee, stale or over-oxidized coffee beans will have a poor aroma or basically no taste, serious musty, earthy, and iodine. The taste even has a fermented taste.
