Regarding One Way degassing Valve- For Coffee Packaging.

 

If you pack the freshly roasted coffee beans right into the coffee bag without one way degassing valve, your bag will soon turn out like below.

 

 

 

You know why it's like this? 

 

That's because freshly roasted coffee bean generates Carbon Doxide Gas. It will Generate up to 7 days. So, one sealed up the bag, the bag would get bigger and bigger and then.. PAH!!

 

You know ;)

 

 

BUT! Things would be differernt If you put one way degassing valve on the bag.

 

One way degassing valve -As it is called, It allows gas only one way direction.

 

Then, How it works... 

 

 

First, Let's see how one way degassing valve looks like.

 

 

It's Front Side and Back Side accordingly.

 

 

The Structure of One Way degassing Valve is like below.

 

 

 

Above are structure of one way degassing valves.

 

Black in the left side is multi-layer of the bag >>>>

Gray Part is case>>>>>>

First layer of orange in the left side is the Cap>>>>

The Middle layer of orange is silcon disk>>>>

The right orange strip is also case>>>> 

 

 

 

Process:

Step:1 one freshly roastly coffee bean is filled in the bag, the presssure of inside bag and outside of bag is same

Step: 2 The pressure of inside of bag increases, and carbon dioxide is coming one while the silicon disk is lifted up by increase pressure.

Step 3, One all degassing job is done, the silicon disk will again come to it's original shape ad stick to the bottom case.

 

Ohoh.. Also there is silicon oil in the middle of bottom case and silicon disk. This is why oxygen outside of the bag cannot come into the bag.

 

So, that's why...

 

 

If you ever want to purchase one of these bags, You can visit our website

 

www.bag4bean.com

 

Bye ~~

 

 

It's so hot here in South Korea right now, How are you there ? 

 

Cool ?