How to use the sticker coffee valve

01 May 2020

Coffee is a culture, lifestyle, science and art. It is the ultimate need for coffee lovers to pursuit the freshness of the coffee continuously. The problem of coffee oxidation and deterioration was solved since the appearance of the coffee one-way degassing valve, and it was a must for each coffee person to save their favorite coffee. The one-way degassing valve allows you to make fresh and delicious coffee every time. For those who use coffee bags or other packaging to store coffee, they can choose the traditional one-way degassing valve that is installed by hot pressing machine. We can also consider using the SMD coffee valve as there are many canned coffee drinks nowadays.

After roasting, the rate of carbon dioxide released from the coffee can go up to 1000cc per pound in a few days to several weeks. According to an article published in the Journal of Agriculture and Food Chemistry, the deeper the roasting level, the shorter the roasting time, the greater the amount of gas released, and the higher the emission rate. This points out a problem: the accumulation of large amounts of carbon dioxide in the packaging can cause the coffee bag to rupture. Therefore, coffee must be "degassed" in order to keep itself from oxidation and therefore maintain the freshness. The one-way degassing valve is very popular in the coffee market. The one-way degassing valve allows the air in the bag to escape while preventing oxygen and other contaminants from entering.

After roasting, the rate of carbon dioxide released from the coffee can go up to 1000cc per pound in a few days to several weeks. According to an article published in the Journal of Agriculture and Food Chemistry, the deeper the roasting level, the shorter the roasting time, the greater the amount of gas released, and the higher the emission rate. This points out a problem: the accumulation of large amounts of carbon dioxide in the packaging can cause the coffee bag to rupture. Therefore, coffee must be "degassed" in order to keep itself from oxidation and therefore maintain the freshness. The one-way degassing valve is very popular in the coffee market. The one-way degassing valve allows the air in the bag to escape while preventing oxygen and other contaminants from entering.

Wojin's patch type exhaust valve-WJ01P can help coffee to finish the degassing process. It can be used to store the roasted coffee bean and some other fermented food. Moreover, it can be used in coffee bags, cans, plastic cans, coffee bags, soft food packaging and composite packaging bags.

Today Wojin Coffee Valve will teach you how to use the patch coffee valve-WJ01P, how to install the patch coffee valve on the coffee packaging bag.

Step 1: You need to prepare a needle, and then make a hole in the surface of your coffee bag. The hole needs to be 1-2 mm to ensure that carbon dioxide can be released to the outside through the hole with the exhaust valve.

Step 2:Pick up a patch degassing valve WJ01P.

Step 3: Focus on attaching the degassing valve WJ01P on the bag and cover the small hole you just make, which is to ensure that the degassing valve will complete the work in one-way. Meanwhile, the air cannot enter the bag from the outside. Thereby, the whole system would have the sealed exhaust effect to keep the contents of the bag fresh.

The steps above are not only applicable to packaging bags, but also to cans or plastic cans. The patch type degassing valve has the same excellent exhaust effect as the traditional hot-pressure one-way degassing valve, which is suitable for home use. Wojin Valve reminds all coffee lovers that we should always choose the right exhaust valve according to our needs.

Tag: coffee valve

Originally published 01 May 2020, updated 01 May 2020.