Can you understand what is means for the first picture?

If you don't understand,it doesn't matter,I will explain to you.

The function of the one-way degassing valve.

1.It will help you release the carbon dioxide outside the coffee bags.After your

coffee beans have been roasted,it will produce many carbon dioxide,the carbon

dioxide need to be released outside the coffee bags: 1.The carbon dioxide full

of your coffee bags that will cause the coffee bags explosion.2.The carbon

dioxide in your coffee bags will make your coffee beans or coffee powder

oxidation.

Our one-way degassing valve open pressure is :≥2-8 mbar.(It means that when

you carbon dioxide arrival 2-8mbar that our valve will begin to release the

carbon dioxide outside the coffee bags)

The closed pressure is :≤2 mbar.(It means that when you carbon dioxide get to

≤2 mbar,our one-way degassing valve will stop releasing the carbon dioxide

and keep the coffee aroma into your coffee bags.That is why you can smell the

coffee aroma when you see some coffee with valves in the supper market,and

the customer will check are the coffee fresh through smell the coffee aroma.)

2.Maybe you will worry the Oxygen get into the coffee bags that also can make

the coffee beans or coffee powder oxidation.That is why the valve called

one-way degassing valve.Our one-way degassing valve can prevent the Oxygen

getting into the coffee bags.All of Wojin one-way degassing valve will do the

vacuum test to ensure the quality. www.wojinvalve.com

If you have any question on the details,feel free to ask Miss Hebe.

Email: hebe@wojinvalve.com

Whatsapp: +86 13679820357

Skype: mai.hebe