CO2 Cylinder: Food Grade CO2 VS Industrial Grade CO2

CO2 cylinders are mobile pressure vessels for transporting and storing liquid carbon dioxide gas. CO2 is divided into food grade and industrial grade, so CO2 cylinders are also divided into food grade CO2 cylinders and industrial grade CO2 cylinders.

What are Industrial CO2 and Food Grade CO2?

In addition to being used as a food additive in carbonated beverages such as beer and cola, CO2 is also widely used as a welding shielding gas in engineering. Therefore, there is a saying between “food grade” and “industrial grade”, and there is a big difference between the two. The standard adopted for “industrial CO2” is “GB/T 6052-2011_Industrial liquid CO2”, while “food grade CO2” adopts “National Food Safety Standard such as GB1886.228-2016, GB10621-89 and GB1917 – 94 for Food Additive CO2”. GB1886.228- 2016, GB10621- 89, and GB1917- 94 are the current CO2 standards for food additives, which are respectively applicable to carbon dioxide produced by synthetic ammonia, lime kiln method, and fermentation method. GB10621-89 has 7 indicators and the purity of CO2 is greater than or equal to 99.5%. GB1917-94 has 6 indicators, and the purity of CO2 superior product is greater than or equal to 99.8%. GB1886.228-2016 has multiple indicators, of which the CO2 purity is greater than or equal to 99.9%.

How do distinguish food grade and industrial grade CO2?

The detection of CO2 is a technical task that requires a professional organization. The easiest way to distinguish food-grade and industrial-grade CO2 is: when you buy CO2, you can ask the merchant to issue a qualification to deal with food-grade CO2, or at least the CO2 cylinder has a corresponding food-grade label.

How do distinguish food grade and industrial grade CO2?

• The detection of CO2 is a technical task that requires a professional organization. The easiest way to distinguish food-grade and industrial-grade CO2：
• When you buy CO2, you can ask the merchant to issue a qualification to deal with food-grade CO2, or at least the CO2 cylinder has a corresponding food-grade label.

The function of CO2 in carbonated beverages

CO2 additives are added to carbonated beverages such as cola to make the drink more refreshing, largely due to the irritating feeling of CO2 escaping from the liquid to remove heat. The source of CO2 in the freshly adjusted cola is filled in later filling. The CO2 added to the beverage must be the food additive CO2. At this time, CO2 cylinders play a big role.

The function of CO2 in beer

1. Endow the beer with refreshing killing power and rich foam.

2. Reduce the dissolved oxygen in the beer, and improve the flavor stability and shelf life of the beer.

3. The CO2 and organic acids in the beer have refreshing and refreshing functions: On the one hand, moderate drinking can reduce excessive excitement and tension, and can promote muscle relaxation. On the other hand, it can stimulate nerves and promote digestion. The source of CO2 in beer is firstly produced by wort fermentation. Secondly, it is filled in later filling. The CO2 added to beer must be the food additive CO2 so you can get a CO2 cylinder to achieve it.

How to store food-grade CO2?

Store food-grade CO2 separately from other gases and full CO2 cylinders should be stored separately from air cylinders. The CO2 cylinder and the CO2 gas are inseparable, and the correct use of the CO2 cylinder can better apply the CO2 gas.

Where can you get food-grade CO2 cylinders?

Nowadays, there are many types of CO2 cylinders. Rotass 0.6L CO2 cylinder is one of the good choices, which is called 0.6L food grade CO2 filled cylinder too. This product has 415g food grade CO2 that is 99.95% purity. The material of this CO2 cylinder is used recyclable aluminum.