Iso-Extract 30% - 1KG

Iso-Extract 30% - 1KG

Iso-Extract 30% is an aqueous solution of the potassium salts of iso-alpha acids. ISO 30% can be used post-fermentation to top-up bitterness or partially replace traditional bittering forms. ISO 30% is added immediately before filtration for best yield results.

Advantages

• Bitterness
• Foam
• Anti-microbial

Usage & Methods

• Dose anytime during kettle boil as a partial replacement for kettle hopping
• Post-fermentation for touching up IBU’sPost fermentation utilization 85% – 90%
• Dose anytime during kettle boil as a partial replacement for kettle hopping
• Good: Add to empty vessel and push with nitrogen (NOT CO2) into beer line when starting to fill tank.
• Better: Add to empty beer keg and fill with pH 8-9 adjusted de-aerated, de-ionized water and push with nitrogen (NOT CO2) into beer line when starting to fill tank
• Best: Meter the concentrated product into transfer stream using a diaphragm pump. Attempt to deliver evenly throughout 80% of the transfer of beer. Dispense solution into the beer transfer stream pre filtration
• Inject on suction side of beer transfer pump
• Link to methods for bench-top testing in bottles or kegs.

Notes & Suggestions

• Limit use of product to 30% – 40% of total bitterness to avoid a noticeable change in the bitter quality
• Post fermentation for best utilization and efficiency (85%-90%)
• Do not add to DE slurry tanks
• Make sure introduced at least 5 Meters upstream of filter
• Diluting with beer lowers utilization and can result in the precipitation of resins.
• Product will freeze – must ship next day air during winter months
  

Package & Storage

• 1 kg. containers
• Open containers should be used within 3-4 weeks and headspace purged using nitrogen (avoid using CO2)
  

Specifications

• Description: clear, pale amber to yellow aqueous solution of the potassium salts of iso-alpha acids
• Iso-alpha acids: typically 30.0 ± 2.0 % (w/w)
• Alpha acids: < 0.6 %
• Beta acids: < 0.2 %
• Hop oil: < 0.1 %
• pH: 9.0 (± 1.0)
• Viscosity: 15 – 20 mPas at 20 °C (68 °F)
• Density: 1.065 (± 0.005) g/ml at 20 °C (68 °F)