First, the heat control of the coffee grinder
Causes and effects of fever
It is a common phenomenon for coffee grinders to heat up during operation, mainly caused by the motor running and the friction between the knife head and the coffee beans. Long-term continuous grinding or excessive load on the cutter head can lead to excessively high temperatures, which in turn affects the release of the aroma of coffee beans. The volatile aromatic substances in coffee beans are prone to loss at high temperatures, resulting in a weakened flavor of the brewed coffee.
Heat control method
Reduce the amount of coffee beans ground at one time: Avoid grinding too many coffee beans at one time. It is recommended that the amount of coffee beans ground at one time be based on the amount used at one time, and reduce the continuous working time of the cutter head.
Intermittent use: When grinding continuously for a long time, appropriately pause the equipment to lower the temperature of the cutter head.
Equipment selection: Prioritize the use of grinding machines with heat dissipation designs, such as those equipped with heat dissipation holes or low-power motors, to reduce heat accumulation.
Second, the preservation methods of coffee beans
Preservation principle
The preservation of coffee beans should follow the principles of “sealing, avoiding light, moisture-proofing and low temperature” to delay oxidation and the loss of aroma.
Specific preservation methods
Seal and store:
Use sealed cans or sealed bags to reduce the contact of coffee beans with air.
If one-way exhaust valve packaging bags are used, stickers can be attached to slow down the exhaust speed and extend the shelf life.
Store away from light
Avoid direct sunlight to prevent coffee beans from accelerating oxidation due to light exposure.
Transparent containers should be placed in a shaded area or replaced with opaque ones.
Moisture-proof storage
Keep the storage environment dry to prevent coffee beans from getting damp and deteriorating.
Low-temperature storage
Short-term storage (1-2 weeks) : Keep in a cool place.
Long-term storage: It can be frozen (below -18℃), but should be aliquoted into small portions to avoid repeated thawing. After thawing, the coffee beans need to be allowed to return to room temperature before grinding and using.
Other precautions
Freshly ground and used immediately: The aroma of coffee beans fades faster after grinding. It is recommended to use them as soon as possible after grinding. The best time to drink is within 5 minutes after grinding.
Avoid odors: Coffee beans are prone to absorbing odors and should be kept away from items with strong odors.
Control storage quantity: Purchase an appropriate amount of coffee beans based on the rate of consumption and avoid long-term storage.