Tornesch is a town in the district of Pinneberg, in Schleswig-Holstein, Germany. It is situated approximately 7 km (4 mi) southeast of Elmshorn, and 25 km (16 mi) northwest of Hamburg. Tornesch is also the home of the Klaus-Groth-Schule, named after the German poet Klaus Groth. It is also home to the Fritz-Reuter-Schule, named after German writer Fritz Reuter.

You can help expand this article with text translated from the corresponding article in German. (March 2011) Click [show] for important translation instructions. View a machine-translated version of the German article. Machine translation, like DeepL or Google Translate, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia. Consider adding a topic to this template: there are already 9,107 articles in the main category, and specifying|topic= will aid in categorization. Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article. You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. A model attribution edit summary is Content in this edit is translated from the existing German Wikipedia article at [[:de:Tornesch]]; see its history for attribution. You should also add the template {{Translated|de|Tornesch}} to the talk page. For more guidance, see Wikipedia:Translation.

Quick Facts Country, State ...

Tornesch
Town
Flag Coat of arms
Location of Tornesch within Pinneberg district
Tornesch Show map of Germany Tornesch Show map of Schleswig-Holstein
Coordinates: 53°42′N 9°43′E
Country	Germany
State	Schleswig-Holstein
District	Pinneberg
Subdivisions	3 Stadtteile
Government
• Mayor	Sabine Kählert
Area
• Total	20.62 km2 (7.96 sq mi)
Elevation	12 m (39 ft)
Population  (2022-12-31)[1]
• Total	14,350
• Density	700/km2 (1,800/sq mi)
Time zone	UTC+01:00 (CET)
• Summer (DST)	UTC+02:00 (CEST)
Postal codes	25436
Dialling codes	04122, 04120
Vehicle registration	PI
Website	www.tornesch.de

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Tornesch has a place in biochemical history from the wood saccharification^[2] process developed by Scholler,^[3] also known at the Scholler-Tornesch process. The first factory to use the process was built in Tornesch. This early work was part of the development of biofuel such as cellulosic ethanol.