Coffee seeds frozen storage method
The French Development Institute has recently successfully invented a method of long-term frozen storage of small fruit coffee seeds, which provides a reliable means for establishing a small fruit coffee seed bank and protecting biodiversity. Coffee belongs to Rubiaceae evergreen shrubs or small trees, mainly produced in tropical areas, there are small fruit coffee, medium fruit coffee and large fruit coffee and so on. Small fruit coffee is native to the Arab region and is currently one of the most widely grown in the world. However, due to the poor cold tolerance of small fruit coffee seeds, the long-term preservation of this kind of coffee seeds has been considered difficult or even impossible. According to reports, the method invented by the French Development Research Institute is mainly divided into four steps: the first step is seed drying and dehydration, the second step is slow cooling and rapid immersion of seeds in liquid nitrogen, the third is reheating, and the last is rehydration. The researchers say that this method can ensure that the reserve organization of coffee seeds will not be damaged, so that the seeds can be well preserved for a long time.
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Answers to 6 Coffee knowledge questions in the Encyclopedia of Fine Coffee
Q: should I store the coffee beans in the refrigerator after they are opened? How to save it? Answer: as long as it is sealed in a cool place at room temperature. Coffee is not recommended to be put in the refrigerator. If you put it in the refrigerator and take it in and out when you want to drink it, the fresh-keeping temperature of the coffee is unstable, which leads to the faster loss of smell, not to mention that coffee has the function of deodorizing. This has become a deodorant.
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An introduction to the appreciation and production of Italian Coffee
If you want to do something good, this is the machine I use. I don't turn it off for 24 hours and warm up for half an hour every morning. It's my concubine. I can feel the steam on the machine when something goes wrong and heat the cup. The quality of the espresso depends on the quality of the machine-the quality of the coffee beans-the thickness of the coffee powder-the water is not easy to change under other conditions.
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