one way valve founds that since ancient times, China's first cafe opened at the Shanghai Bund in the 1930s, and coffee from a foreign good gradually become daily drink of Chinese, in fact, it was originally provide for those foreign sailors had coffee addiction, and relief their homesickness. The coffee brought the cultural assumption between East and West is also slowly fermented in the Chinese people's life and every cafe in the afternoon corner.
Later, many overseas Chinese who returned to China has often patronized. The $ 3.4 a bottle of Shanghai coffee lay on the shelves of Beijing’s Xidan Market has started to attract people’s attention. It was until the 1970s that the subsequent instant coffee was accompanied with Chinese for a long time. Some foreign investment hotels have their own café, but it needs to pay foreign exchange bills. From conditions to price, the café in China of that era is far away from the common people.
At that time, after the glass bottle filled with "Nestle Coffee" was drank empty, and most of the bottles became the "large-capacity" glass used by the host to drink tea and water. But some hosts were cherished these bottles and woven the colorful wool protective cover the bottle. If you ask people how the coffee taste, he cannot say any special, and do not care about that. Indeed, this glass bottle is a good stuff; on the one hand it’s strong and practical, while on the other hand: "This is Nestle coffee I have drunk before, and you see this is the jar that once fulfilled coffee.”
Therefore, coffee once use this way become the temporary social trends in China.
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’.