...for automatic foam quality monitoring

Foam stability is an important beer quality parameter.

Measuring foam stability, however, has been so far either laborious or inaccurate – or both.

The demand for an accurate and user-/location independent stability measurement device led to the development of the automatic Steinfurth Foam Stability Tester (SFT).

Functional description:
The container (bottle or can) with the beer to be measured is connected to the Steinfurth Foam Stability Tester, using a sampling device (for example the Steinfurth Sampler).

The beer is moved into the SFT by CO2 pressure. The pressure is such that the beer does not degasify inside the container.

The beer is ejected into the glass cylinder through a nozzle, converting it into foam. Foam stability is calculated
from the timing of the passing of the beer / foam boundary along some optical sensors.
Before every measuring, the cylinder is rinsed automatically. It is possible to start an automatic series of several consecutive and independent measuring from the same beer package.  
 

Downloads: Steinfurth Foam Stability Tester

Technical Information 

Container type:               bottle or can
Duration of 1 measuring:  approx. 5 minutes
Data output:                   LC display 2 lines
                                     with 20 chars each
Interface:                        RS 232
                                     (PC or printer)
Power supply:                230 VAC / 115 VAC
Rinse fluid:                     Tap water
CO2 supply pressure:     4.5 bar (65 psi) 

Advantages 

• Good reproducibility
• Results comparable to Ross & Clark
• Automatic sampling
• Automatic rinse
• Simple operation
• User independent
• Constant absolute pressure – location / ambient
• pressure independent measuring (optional)
• Suitable for all beer sorts
• Optoelectronic detection
• Precise dosing
• Simple cleaning