It is produced from a CO2 extract of hops and contains only purified isomerized alpha-acids. It can be used to top-up bitterness or used as a partial hop replacement (up to 70% of the total bitterness).
Clean, bitter flavor and, when used for adjustment, results in beers of consistent bitterness.
The calculation of the dosage is based on the bitterness to be achieved, the strength of the Iso-extract solution and the expected utilization (usually 80-90%).