Pushing open the door of the workshop in the morning, the mellow aroma of roasted coffee beans hits you. As an old technician who has worked in the factory for twelve years, I understand the delicate nature of coffee granules that "die in the light" too well-last week, another Yunnan customer complained that the boutique cold brew coffee powder they developed had only been on the shelves for three months, and the flower and fruit aroma was gone after opening the bag. This matter made our factory's technical department anxious. They turned out more than 30 packaging solutions overnight for comparison, and finally found a breakthrough in the nitrogen filling module of the coffee granule packaging machine.
Our third-generation coffee granule packaging machine is really doing well this time! Don't be fooled by its appearance, which is similar to that of an ordinary pillow machine. Inside, it has a "triple protective armor". The first barrier is the dynamic nitrogen filling system, which can reduce the oxygen content in the packaging bag to below 0.6% in 0.8 seconds, which is two steps faster than the common models on the market. When demonstrating to a customer in Qingdao, their technical director stared at the oxygen concentration detector and muttered: "Isn't this nitrogen filling speed feeding the oxygen a flash skill?"
The second line of defense is our specially made composite film. The three-layer structure is embedded with nano-scale oxygen-blocking particles, which is like a 360-degree protective shield for coffee particles. When visiting customers in Jiangsu, Zhejiang and Shanghai last month, a chain brand came to us with an oxygen permeability test report: "The oxygen permeability of the bags sealed by your coffee particle packaging machine is 60% lower than that of ordinary packaging!" In fact, the secret lies in the film formula. We adjusted the resin ratio seven times before finding the golden ratio.
What I am most proud of is the intelligent sealing system. When traditional packaging machines seal, there will always be 0.3-0.5 seconds of oxygen back-infiltration. We have added a dual-channel heat sealing device to the coffee granule packaging machine, which can add a nitrogen shock wave at the moment of sealing. Guess what? Last week, the quality inspection department took samples from three months ago for testing, and the flavor retention rate was 15 percentage points higher than the industry average!
Now when I walk into the workshop, I feel particularly at ease when I see more than 20 coffee granule packaging machines lined up to work. The popular coffee brand in Shenzhen changed our entire solution last year, and the repurchase rate increased by 40% this year. Their factory manager came to inspect a while ago, holding the freshly unsealed sample and sighed: "It's been half a year, and the coffee powder still feels a little warm as if it was just ground!"
In the final analysis, the preservation of coffee granules is a race against oxygen. Our factory has been working hard on oxidation protection technology over the years, from nitrogen filling rhythm to film material research and development, every detail is serious. Next time you pass by our factory, you are welcome to try the coffee powder packaged by our equipment - no matter how long it has been stored, the aroma when you open the bag is guaranteed to be more exciting than first love!
