29 Feb 2016
Coffee is a kind of international beverage that popular all over the world.But,there is no any standard to make coffee,including roasting. one way valve would like to tell you in some personality cities of some countries,they had their own hobbies in coffee roasting degree.
In Tokyo,high roasting is more popular,but they have a trend to like Italian roasting.In Western countries,Italian roasting is still loved since the ancient times.The representative of modern city, New York,loves the city roasting just like its name.But,there are various of coffee bean in different roasting degree sold in New York due to there are various of people in different skin color live in New York.So,in fact,New York has a changeable hobby in coffee roasting.Vienna is a city that have deep coffee culture,it prefer Italian roasting.In French,its special coffee culture determine they like using French roasting.Similarly,Italian has its own roasting hobby due to its special coffee culture.However,Europeans and Americans use Italian roasting more and more widely.Though there are various different coffee roasting degree loved by different people from different cities,Italian roasting that suit to be made coffee with steam pressure machine still owns many lovers.
Some places like we talked above has their roasting hobby according to their habitual taste only,while some places according to the feature of the coffee bean they produce.For example,it’s a waste roasted the coffee from Ethiopia in Italian roasting,it would lose its original characteristic.In many cases,the characteristic of coffee bean itself determine which kind of roasting degree is more suitable for it.Similarly,it’s not good to use Yauco and Kona coffee bean for heavy roasting because it would lose it original taste.Generally,Sumatra coffee has round and full shape,is has medium acidity.When roasted heavily,it would lose its acidity and it’s easy to be pasty.On the contrary,some coffee would produce some new,interesting and different quality when roasted in heavy degree.For example,Mexico bean would produce a kind of sweet taste when it’s in a heavy roasting.And,in heavy roasting,the Guatemala Antigua Coffee can obviously keep its acidity and fruit flavor,that’s hard for other coffee to achieve this.
In a word,the coffee is roasted in heavier degree has lower quality.That’s say the coffee in heavy roasting degree would lose lots of its flavor.But coffee drinkers from different countries and cities have different requirement to the coffee taste.To be strictly,there is no standard of high quality coffee.Therefor,for the coffee lovers,roasting degree is not a strict and only standard that determine the quality of the coffee,they usually roast coffee in the degree they think is good according to their taste and the feature of their coffee bean.That’s a main reason why many counties have their own special coffee culture.
Tag: one way valve
Originally published 29 Feb 2016, updated 29 Feb 2016.
Consider using packaging with one way degassing valve to help maintain the freshness of the pet food and extend its effective feeding period to improve the quality.10 Aug 2020
Take the coffee bean as an example, the steps from plant, pick, roast, are all connected , without the one-way valve usually make the coffee less fresh.02 Aug 2020
The external oxygen will be stopped from entering the bag, so that the package is in a working state, thereby protecting the freshness of the food in the bag.