Swiss lime


Swiss gravel


Swiss Lime

Chemistry & Plastics

Efficient chemical processes and innovative plastics thanks to the incomparably pure hydrated lime from KFN.

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Swiss Lime

Food & Medicine

Healthy, enjoyable food starts with white lime from our factory. It has been certified according to ISO 22000 for food and animal feed uses.

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Swiss Lime

Industry & Construction

The buildings, roads and pathways of tomorrow are built using the finest Swiss white lime-products from KFN.

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Swiss Lime

Agriculture & Environment

Sustainable farming and healthy growth made possible using the high quality, pure lime products by KFN.

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Swiss Lime

Life Science

You will find innovative ideas for health and quality-of-life-products in the pure white lime coming from KFN – lime that has been certified for food and drinking water uses. 

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Swiss gravel

Gravel products and aggreate

High-class gravel products from KFN are used as building material for civil engineering in the construction of highways and roads, for the construction of buildings and in gardening and landscape building.

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Your Advantages

Product Quality plus incomparable service

  • Lime with calcium carbonate content reaching above 99%
  • Highest purity, lowest iron and lead content in Europe
  • Calcium hydroxide content reaching above 98%, remaining CO2 <0,7%
  • Extra fine calcium hydroxide for faster chemical reactions (100% < 0,02 mm)
  • High CaO-reactivity with t60-value under 40 seconds
  • Highest white level without black spots, 96,8% (Spectro Color, Ry)
  • Certified for food, animal feed and drinking water processes and products according to ISO / FSSC 22000
  • Guaranteed compliance with the highest quality standards through quality management system, ISO 9001 and ISO 14001 certified

KFN News

Albert Rösti visits KFN to learn more about its carbon capture project

KFN recently presented its innovative project “Carbon Capture at KFN” on  occasion of the visit from Federal Councillor Albert Rösti. The project’s objective is to capture the carbon emissions from the calcination reaction that occurs in KFN’s lime kiln. With such a carbon capture approach, KFN can reduce its carbon footprint substantially and get a step closer towards climate neutrality.

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Peter Briner, CEO of Peter Briner AG, shows the benefits of lime hydrate for farming, having emanated from the filters of KFN’s production.

Peter Briner AG specializes in organic farm fertilizer and recycled manure. For a number of years, the company also offers hydrated lime. This is a by-product created by the burning and slaking of lime, captured in the filters of KFN. Why lime is crucial for fertile grounds and what other benefits hydrated lime has to offer in farming explains Peter Briner. Being the founder and CEO of Peter Briner AG, he has occupied himself for over 30 years with the optimum nutrient supply for farm soils.

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KFN uses its own sewage treatment facility to create a water cycle

In the course of its lime production, KFN cleans thousands of tons of rock every year. For this, it uses an internal water cycle. Thanks to its own sewage treatment facility, there is no sewage. 

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Trust our expertise


KFN offers a wide range of services: we give competent advice, we offer comprehensive lab analyses and provide individual logistic solutions.

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