* Mathematical analysis

 

 

a = psi of the gas

b = ideal gauge pressure of straight

c = % of CO₂ in the gas

 

• To figure the correct keg pressure for a custom CO₂ / N blend, use the following procedure:

o You must first know the average carbonation level, in volumes, of the beers you are balancing.

o You must know the CO₂ percentage in the blend to be used.

1. Using the average carbonation level, figure the ideal gauge pressure of straight CO₂ from the chart in the CO₂ – Figuring the correct pressure section.

2. Use the following equation, where

a. a = psi of the gas blend

b. b = ideal gauge pressure with straight CO₂

c. c = % of CO₂ in the gas blend (as a whole number; i.e., 60% CO₂ = 0.6)

 

 

Examples:

 

 

a = psi of the gas

b = 12 straight

c = 70% in the gas

 

• To figure the correct blend for a custom CO₂ / N blend, use the following procedure:

o You must first know the average carbonation level, in volumes, of the beers you are balancing.

o You must know the operating pressure at which the kegs will be poured.

1. Using the average carbonation level, figure the ideal gauge pressure of straight CO₂ from the chart in the CO₂ – Figuring the correct pressure section.

2. Use the following equation, where

a = psi of the gas blend

b = ideal gauge pressure with straight CO₂

c = % of CO₂ in the gas blend (as a whole number; i.e., 60% CO₂ = 0.6)

 

 

Examples:

 

 

 

a = psi of the gas

b = 12 straight

c = 70% in the gas

 

Download a PDF of Appendix C (20 KB).