Pressure Conversion

The Pressure Conversion tool converts between different pressure units used in brewing.

How to Use

1. Enter a value in any pressure unit field

2. View instant conversions - All other units update automatically

3. The tool remembers your last entered value

Supported Units

• Bar: Metric pressure unit

• PSI (Pounds per Square Inch): US standard

• kPa (Kilopascals): SI unit

• Atmospheres (atm): Standard atmosphere

Carbonation Pressures

At 3.3°C (38°F)

• 2.0 vols CO2: 0.34 bar (5 PSI)

• 2.5 vols CO2: 0.69 bar (10 PSI)

• 3.0 vols CO2: 1.10 bar (16 PSI)

• 3.5 vols CO2: 1.45 bar (21 PSI)

Temperature Adjustment

Higher temperatures require more pressure:

• Add ~0.07 bar per 1°C increase (~1 PSI per 2°F)

• Subtract ~0.07 bar per 1°C decrease (~1 PSI per 2°F)

Serving Pressures

Typical Settings

• Ales: 0.69-0.83 bar (10-12 PSI)

• Lagers: 0.83-0.97 bar (12-14 PSI)

• Wheat Beers: 0.97-1.24 bar (14-18 PSI)

• Belgian Ales: 0.83-1.10 bar (12-16 PSI)

Line Resistance

Add pressure for:

• Vertical lift: 0.05 bar per meter (0.5 PSI per foot)

• Line length: Varies by diameter

• Flow restrictors: Check specs

Pressure Relief

Safety Limits

• Corny Kegs: 9 bar max (130 PSI)

• Sanke Kegs: 4 bar typical (60 PSI)

• PET Bottles: 4 bar max (60 PSI)

• Glass Bottles: 3.5 bar typical (50 PSI)

PRV Settings

• Set 0.7-1.0 bar (10-15 PSI) above serving

• Test regularly

• Replace if faulty

Practical Applications

Force Carbonation

• Burst carb: 2.0-2.8 bar (30-40 PSI)

• Set and forget: 0.83-0.97 bar (12-14 PSI)

• Adjust for temperature

Pressure Testing

• Check for leaks: 1.4-2.0 bar (20-30 PSI)

• Seal testing: 0.34-0.69 bar (5-10 PSI)

• System pressure checks

Altitude Adjustments

• Lower atmospheric pressure

• Affects carbonation levels

• Adjust accordingly

Quick Reference

Common Conversions

• 0.69 bar = 10 PSI

• 1.03 bar = 15 PSI

• 1 bar = 14.5 PSI

• 2.07 bar = 30 PSI

Tips

• Use accurate pressure gauges

• Check regularly as pressure can drift

• Always use pressure relief valves for safety