The technological process of ice drop coffee making process teaching the secret of good taste of homemade ice drop coffee

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Ice drop coffee was originally invented to prolong the shelf life of coffee, using ice water to extract coffee, unlike hot water to extract coffee oil esters, so adding good cold storage conditions can be preserved for a month. And after 3 days of ripening, it can make the coffee more glycol, but it takes a long time to extract coffee with ice water. The well-known ice drop coffee is naturally extracted by ice water, and many coffee shops also use ice melting to extract it for more than 24 hours, so the caffeine concentration will be relatively high.

In addition to using ice water, in fact, when making iced coffee at home, normal temperature water can also be used instead of ice water, and the time can be shortened. The normal temperature water is extracted with seven drops in 10 seconds and refrigerated immediately. The thickness and flavor of alcohol are even better than that of ice water extraction. At the same time, it can be refrigerated for a long time, and the flavor of glycol will not deteriorate.

Coffee beans recommended for Qianjie Coffee: sun Yega, Sun Sidamo, washed Panama, Costa Rican honey, etc.

Baking degree: shallow and medium baking

Extraction equipment: curling kettle

Powder content: 40 g

Water temperature: 22 ℃

Filtration rate: seven drops in ten seconds

Powder / water ratio: at 1:10, slowly infiltrate the powder layer with 60g water until the coffee water drips into the kettle, then add 420g water to the upper kettle and begin to filter (about 8 minutes full).

Extraction time: about 100 minutes

Such as dripping with ice water in a drop of two seconds.

Here are a few small steps for the production and preservation of iced coffee

Disinfect and sterilize, scald the ice drop pot with hot water before starting the ice drop, or wipe the plastic pot with 75% medicinal alcohol to avoid the deterioration of coffee due to bacteria during cold storage, and use boiled cold water for extraction. If you want to add ice, the ice should also be made of boiled cold water, and ice more than 3 days should also be avoided.

For the grinding degree of fineness in use, the average electric bean grinder is about 3-3.5.

It can be extracted with water at room temperature, the extraction efficiency is increased, the flavor is better, the extraction time can be shortened and refrigerated.

Using ripe coffee and freshly roasted coffee with carbon dioxide, the raised coffee powder layer will expand to the dripping filter, affecting the effluent.

After infiltrating the coffee powder layer, the extraction efficiency can be increased by trickling filtration.

Evenly extract, place round filter paper on the coffee powder layer, so that the water droplets can be more dispersed to the surrounding coffee powder layer, so that all coffee powder layers can be extracted evenly, not only in the center of the extraction powder layer.

Under stable refrigerated conditions, the extracted coffee is put into a glass jar and placed in the lower layer of the refrigerator or in the thawing room.

The rich and mellow ice drop coffee can be drunk immediately from the refrigerator, which is quite convenient. If you think it is too strong, you can add ice cubes or ice water to dilute it without reducing the glycolic flavor. It is even more delicious if you use the undiluted 1amp 3 ice drop coffee, 2pm 3 ice milk, the latte made with a little syrup.

In order to maintain the flavor of the coffee, it is recommended not to put the ice drop kettle into the refrigerator for extraction, because the flavor of the food in the refrigerator will enter the coffee liquid after several hours of dripping filtration, and the iced coffee needs to be completely sealed if it is to be stored in the refrigerator for a week or more. Only a glass jar with a general metal cover is used to preserve iced coffee. Therefore, a special glass bottle of oil and vinegar with a rubber lid can be used to preserve the coffee, or the finished golden wheat glass jar can be washed and then sterilized with hot water to preserve the iced coffee for a long time, but the iced coffee will not smell like a refrigerator at all. environmental protection and resource recycling applications.

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