Tetrahop is a clear, pale yellow aqueous solution of the potassium salts of hop-derived tetrahydroiso-alpha-acids. Tetrahop is derived from a pure resin CO2 extract of hops and is standardized at 10% w/v by UV Spectro analysis.
Application: Tetrahop as 100% of the hop bill or in conjunction with other light stable hop extracts for the hopping of light stable beers. Tetrahop is stable to light and will not contribute to the development of sun struck flavors.
Tetrahop as part of your hop formulation to enhance foam stand and cling. Even at relatively low concentrations of 4-5 ppm, foam stand and lacing are significantly enhanced while maintaining the beer’s characteristic flavor. Tetra can be considered as a unique bittering ingredient that also replaces foam additives.
Tetrahop as part of your hop formulation to improve long term flavor stability.
Tetrahop as part of your hop formulation to differentiate beers. Bitterness profile is sharper and more intense than for Iso-alpha acids. This can be perceived at high concentrations (>10 ppm).
Use Rate Calculations: In optimal dosing conditions the addition of 1 L. of Tetrahop at 10% w/v per 100hL of finished beer will provide 6-7 bitter units. The bitterness intensity is about 1.5 times that of Iso-alpha acids so 7 bittering units will be perceived as 10-11 bittering units by taste. Use rates may vary depending on the point of addition and the desired hopping level.
Dosing Methods: We recommend the direct, undiluted injection of Tetrahop into the beer stream. If an appropriate pump is not available, Tetrahop can be diluted with the deionized water. The dilution factor will be determined according to the available dosing installation. Buffering agents are not required.
In any case, Tetrahop should be added to beer after fermentation and primary filtration, at a point where there is good mixing, no foaming and ideally before a final filtration step. A good proportioning over min. 75% of the filtration time is recommended. Tetrahop injections should be made with a positive displacement pumping system. CO2 backpressure should not be used. A 2-3 mm. diameter dip tube positioned in the middle of the beer stream and oriented against it provides excellent dispersion.
Characteristics:
- FLAVOR of a solution in de-ionized water containing 10 mg/L of TetraHydroIso-alpha-acids: A fine bitterness with no other detectable flavors.
- AROMA of a solution in de-ionized water containing 10 mg/L of TetraHydroIso-alpha-acids: None Detectable
- GUSHING POTENTIAL IN BEER: No Increased Potential
Packaging: 20 L deltangular plastic containers for large orders or 1 liter plastic containers for small or regular orders.
Storage: Unopened containers stored at room temperature for 24 months. Products should be stored at room temperature. A deposit may form on prolonged storage at low temperatures. This deposit dissolves on warming and shaking. Opened containers should be used within 1 month.
