Mineral Content & Lab Analysis

Quality Tested According to Drinking Water Ordinance

The quality of our filtered water is our top priority. To ensure that our L1 device meets the highest standards, we have our water regularly and comprehensively tested by independent specialized laboratories according to the strict requirements of the German Drinking Water Ordinance (TrinkwV).

All analyses consistently confirm: the values are in the optimal range or even well below the legal limits.

Key analysis values at a glance:

• pH value: 7.12 – Ideally balanced and pleasantly weakly alkaline (basic) through refinement.
• Water hardness: 2.4 °dH – Classified as "soft". This ensures a particularly mild taste and simultaneously protects your coffee machine and kettle from limescale.
• Conductivity: 111 µS/cm – A clear indicator of the high purity and effective filtering performance of the system.
• Turbidity: 0.46 NTU – For crystal-clear water with spring water quality.

Optimized Mineral Content & Taste: Since our L1 system operates with state-of-the-art reverse osmosis technology, almost all harmful substances and limescale are removed in the first step. To prevent the water from tasting "empty," a targeted remineralization follows. This stabilizes the pH value and ensures a harmonious mineral balance as well as a particularly soft, spring-fresh taste:

• Calcium: 13.1 mg/l
• Magnesium: 2.3 mg/l
• Sodium: 6.5 mg/l
• Potassium: 0.8 mg/l

Maximum Safety & Residue-Free:

• Nitrate: < 0.5 mg/l – Practically undetectable and thus well below the limit of 50 mg/l.
• Heavy metals: Lead, cadmium, and arsenic are not detectable or are at the lowest detection limit.
• Microbiology: 0 CFU – Confirmed purity. The water is completely free of E. coli, enterococci, and coliform bacteria. 

Quality Assurance & Transparency The last comprehensive laboratory analysis (analysis no. W 75774) was carried out on 09.01.2026.

📄 Complete Laboratory Test Report (PDF) for Analysis No. W 75774