one way valve water and coffee

one way valve water and coffee

one way valve would like to tell you that water is to coffee what tree is to forest,it express the importance of water for coffee.For any drinks,water is a necessary factor.

On the one hand,the water quality has an important influence on coffee quality.Not only coffee,any high quality drink has a high requirement to the water quality.For example,the Scotland whisky is honoured as the water of life,it has to be made with the local unpolluted water,the water is filtered by the granite and flow through the peat riverbed to be processed naturally.Similarly,make coffee requires high quality water.Firstly,the first condition is unpolluted water.Only the unpolluted water is health and can be drink by people.Secondly,the water should be fresh.Fresh means that the water should be rich in oxygen and full of life.The water is set for a long time is obviously not fresh enough so that it can’t be used to make coffee.Thirdly,The water should not mixed with other odor.The water has odor would destroy the coffee taste.Fourthly,the water should has appropriate pH value.That is said the pH value of the water should be 7,not meta acidic and not meta alkaline.

Besides,the water temperature also has significant influence to the coffee quality.In general,when making coffee,the water temperature should be 91~94℃ when it contact with the ground coffee,this temperature called the best water temperature throughout extraction.If the temperature is too low,the coffee would has obviously acidity while it would has obviously bitterness if the temperature is too high.Of course,the water temperature is changeable in the actual operation because there are many situations need to be considered.For example,the deep roasted coffee should use lower temperature,while light roasted coffee use higher temperature.After extraction,the temperature of the coffee should be 85℃,then the coffee should be consumed while it is hot.With the temperature reduced,the acidity and foreign flavor would appear.The best temperature to drink is 65~75℃.There is an real experience,I have ever made coffee for my friends,I couldn’t stand that my friends always hold the coffee in their hand,or just put it aside,but didn’t drink it as soon as possible.I was anxious and felt pity because they missed the best taste of the coffee.

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