Hopstar iso 0813 en tcm30 12665
2
GEA Process Engineering HOPSTAR™ Iso: For higher alpha acid yields in combination with significantly reduced energy expenditure for wort boiling. GEA Brewery Systems has developed an innovative method for the efficient use of hop extract. For an industrial application of this method they also integrated a homogenizer of their affiliated company GEA Niro Soavi. Such homogenizers are well known and proven e.g. in the field of milk treatment. The process equipment HOPSTAR™ Iso is primarily designed for the use of hop extract, but with a slight modification of the process, a mixture of hop pellets and hop extract can also be processed. For the method as well as for the equipment a patent application was filed. The basic technical principles for higher alpha acid yields are the droplet size reduction in the hop extract suspension and the isomerization of the suspension under controlled process conditions parallel to the usual wort boiling. The dosing of the isomerized hop extract suspension can be done towards the end of wort boiling into the kettle or independently of this provision directly before the wort cooler into the hot wort. Impressive results Results of large-scale trials with a reduction of alpha acid dosing by 30 % showed a sensorially more intense, but more harmonious bitterness in the beer than in the beer batch that was produced in the standard way with dosing of the total hop extract into the wort kettle. The analytical results of the bitterness units showed a comparable level in both beers. The indicator substance for the hop oil content, linalool, is significantly higher by a factor of 3 – 5 in beers with dosing of isomerized hop extract suspension than in the normally hopped beer. If it is possible to brew beer outside the provisions of the Provisional Beer Law, the yield of isomerized alpha acids can be increased even further by the process-related adjustment of the pH-value in the hop extract suspension according to the Drinking Water Ordinance. The described technology supports customers in the brewing industry to achieve the objectives defined by politics regarding the implementation of energy-efficient processes for beer production and contributes to the reduction of CO 2 emissions. engineering for a better world
description
http://www.gea.com/global/de/binaries/HOPSTAR_Iso_0813_EN_tcm30-12665.pdf
Transcript of Hopstar iso 0813 en tcm30 12665
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GEA Process Engineering
HOPSTAR Iso: For higher alpha acid yields in combination with signi cantly reduced energy expenditure for wort boiling.
GEA Brewery Systems has developed an innovative method for the effi cient use of hop extract. For an industrial application of this method they also integrated a homogenizer of their affi liated company GEA Niro Soavi. Such homogenizers are well known and proven e.g. in the eld of milk treatment.
The process equipment HOPSTAR Iso is primarily designed for the use of hop extract, but with a slight modi cation of the process, a mixture of hop pellets and hop extract can also be processed. For the method as well as for the equipment a patent application was led.
The basic technical principles for higher alpha acid yields are the droplet size reduction in the hop extract suspension and the isomerization of the suspension under controlled process conditions parallel to the usual wort boiling. The dosing of the isomerized hop extract suspension can be done towards the end of wort boiling into the kettle or independently of this provision directly before the wort cooler into the hot wort.
Impressive results
Results of large-scale trials with a reduction of alpha acid dosing by 30 % showed a sensorially more intense, but more harmonious bitterness in the beer than in the beer batch that was produced in the standard way with dosing of the total hop extract into the wort kettle. The analytical results of the bitterness units showed a comparable level in both beers. The indicator substance for the hop oil content, linalool, is signi cantly higher by a factor of 3 5 in beers with dosing of isomerized hop extract suspension than in the normally hopped beer.
If it is possible to brew beer outside the provisions of the Provisional Beer Law, the yield of isomerized alpha acids can be increased even further by the process-related adjustment of the pH-value in the hop extract suspension according to the Drinking Water Ordinance.
The described technology supports customers in the brewing industry to achieve the objectives de ned by politics regarding the implementation of energy-effi cient processes for beer production and contributes to the reduction of CO2emissions.
engineering for a better world
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GEA Process Engineering
GEA Brewery Systems GmbH Huppmann Tuchenhagen
Locations:
Heinrich-Huppmann-Str. 1, 97318 Kitzingen, Germany Phone +49 9321 303-0, Fax +49 9321 303-603
Am Industriepark 210, 21514 Bchen, Germany Phone +49 4155 49-0, Fax +49 4155 49-2770
gea-brewerysystems @ gea.com, www.gea.com HOPS
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Efficient treatment methodConclusion
The investment in the HOPSTAR Iso equipment for homogenization and isomerization of hop extract suspension is characterized by the efficient and sustainable use of hops, especially the alpha acids. With a possible reduction of hop dosing by 30 %, every brewer can easily determine how far his annual purchasing costs for hops will be reduced.
In addition, with regard to the energy expenditure during wort boiling, savings of up to 50 % of the originally required heat are possible.
With the use of this technology, the demands for the application of energy-efficient and sustainable production processes to achieve the objectives of environmental policy in the EU are met.
