Tetra Iso-Extract
A homogeneous, yellow to amber, clear aqueous solution; mobile and free flowing at all normal storage and use temperatures. Miscible with demineralized water and alcohol.
OVERVIEW
Tetra is a pure, aqueous solution of the potassium salts of tetrahydroiso-alpha acids produced entirely from CO2 hop extract
Tetra will greatly enhance beer foam when used as a post fermentation replacement for a proportion of the normal bittering
In the absence of normal alpha and iso-alpha acids, Tetra will give virtually complete protection against development of light-struck flavors
LIGHT STABILITY
Tetra will only provide protection from light- struck flavor in the complete absence of normal iso-alpha acids. Tetra can be used in conjunction with Reduced Iso- Extract to achieve light stability, improved foam and balanced bitterness.
Quick Specs
Concentration
9.0 ± 0.5% (w/w) of tetrahydro iso-alpha acids by HPLC or 10.0 ± 0.5% (w/w) by UV spectrophotometric analysis)
pH
9.5 (± 1.0)
Iso-Alpha Acids
Below detection limits
Alpha Acids
Below detection limits
Viscosity
2 – 6 mPas (at 20 °C / 68 °F)
Density
1.017 (± 0.005) g/ml – concentration by HPLC (1.015 g/ml – UV Spectrophotometric)
Description
An amber aqueous solution of the potassium salts of tetrahydro iso-alpha acids
