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Quality

QUALITY ASSURANCE

To ensure the highest level of quality and crop safety, raw materials and finished mixtures undergo multiple testing procedures - both in-house and at independent institutes such as the Weihenstephan University of Applied Sciences, Koldingen and LUFA Münster. This is done in compliance with all relevant European standards and regulations.

Comprehensive control of raw materials

In the first step, we extensively check all incoming raw materials for their suitability as substrates. We examine the chemical and physical properties as well as the plant cultivation criteria through inspection and analysis.



Filling machines monitored by lasers

During production, the filling machines are constantly monitored by lasers and scales to ensure that every substrate component is mixed in at the exact ratio. We regularly check the filling quantities in accordance with DIN EN 12580.



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Laboratory analysis of each substrate batch

Before delivery, we take samples from each batch of substrate. We send these to an independent laboratory for analysis of the chemical and physical properties.

Measuring the clay content

Since our culture substrate and potting soils contain a high proportion of fresh and therefore moist natural clay, we regularly determine the clay content using the alluvial method. In this process, a defined quantity of the finished substrate is poured into a cone filled with water and stirred. Due to its weight, clay sinks to the bottom. The volume can then be read on a scale at the bottom of the cone.

FREE CROP SERVICE

Knowing the current nutritional status of your crop is a prerequisite for needs-based fertilisation, which is why we offer you a free analysis service during the cultivation process. It includes the examination of substrate, soil and irrigation water in the laboratory as well as expert advice from our horticultural engineers. They take samples on site for laboratory analysis and, based on the results, give you tips on the measures to be taken. Any changes in the pH value, a possible lack or excess of nutrients can be detected at an early stage so that you can adjust your fertilisation strategy promptly.




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