Spain and Portugal had not built the strong fleets yet and the trade between Europe and the Middle East mostly depended on Venetian, so the coffee beans in Europe were imported by Venetian. The coffee beans which were just introduced to Europe were expensive, mainly sold to the pharmacists. Until the end of 17th century, it became popular. The vendor who sold lemonade along the street had begun to sell coffee. Thus coffee was increasingly popular in Italy.
Although Italian had accepted coffee, the Christian Conservative didn’t totally agree. They believed that coffee was the Satan drink and wished to ban Christian to drink coffee. The reason was said to be that Muslims were not allowed to drink Christian wine, but replace wine with coffee. The Conservative thought that a Christian drank coffee just as Muslims did. So that was the claim. It was told that the Pope Clement VII took a sip of coffee and praised: “This drink was delicious. Wasn’t it sad that left the coffee to non-Christian? We might as well give the coffee a baptismal name and play a trick on Satan. Making the coffee became a Christian drink”. “one way valve ” learned that coffee was widely popular because of the praise by the Pope.
When you or your customer have high requirement on the coffee kit, please also remember to have your coffee bean packed with a coffee valve without filter.
Brewing methods have different requirements on the powder thickness, exhaust valves without filter is suitable for whole-bean product that can be grinded at home.
Brewing method and the storage condition are both affecting coffee taste, and the exhaust valve with filter installed on package is suitable for powdery product.
We recommend you keep coffee beans in containers with one-way degassing valve, it helps to prevent quality change and to extend shelf life during ‘resting’.