Steinfurth Foam Stability Tester

Perfect automatic foam stability testing

General Details

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).


– 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 doesn’t degasify inside the container.

– The beer is ejected into the glass cylinder through a special constructed 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.

Product Details
Product Details Specification
Industry Beverages
Employment Homogenization
Measurement Categories Foam Stability, Foam decay
Objects Beer
Specifics Foam stability determination
System Yes
Automation Level Fully Automatic Machine
  • Perfect 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
Technical Data
  • 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)