Every claim we make about Alkanatur is backed by a lab report or study. Our products, materials and technologies have been analyzed by independent labs, universities and institutions to check their safety, quality and performance.
From heavy metals to PFAS, our certificates and lab tests cover 200+ substances. Here are the highlights.
Labs, universities and institutes have analyzed our water, filters and materials since 2015. Here is who they are and what they did.
UNE 149101 is a standard for water treatment equipment used inside buildings, including a pitcher. The 2025 edition updates the 2015 one we were first certified under, and our new report goes further: it tests for PFAS, including PFOA and PFOS. The water from our pitcher was checked in an accredited lab against drinking-water limits based on the European Union's (EU) Directive 2020/2184.
Our pitcher (batch 7/25) was tested by the Dr. Oliver Rodés Laboratory, with analysis by LABAQUA. After 120+ tests, the certificate confirms the water complies and exceeds the water standard.
Selected results from the 2025 report, next to the EU-based legal limit (RD 3/2023, which applies EU Directive 2020/2184).
| Substance | Result in filtered water | Legal limit (EU-based) |
|---|---|---|
| Lead | Under 1 µg/L | 10 µg/L |
| Arsenic | Under 2 µg/L | 10 µg/L |
| Mercury | Under 0.20 µg/L | 1.0 µg/L |
| Cadmium | Under 1 µg/L | 5.0 µg/L |
| PFAS (total) | Under 0.010 µg/L | 0.10 µg/L |
| PFOA | Under 0.005 µg/L | 0.07 µg/L |
| PFOS | Under 0.010 µg/L | 0.07 µg/L |
| Trihalomethanes (total) | Under 0.8 µg/L | 100 µg/L |
| Free chlorine | Under 0.10 mg/L | 1.0 mg/L |
| Bisphenol A (BPA) | Under 0.10 µg/L | 2.5 µg/L |
| pH | 8.5 | 6.5 to 9.5 |
Under means the lab found less than it can measure. This report tested the filtered water only, so it shows what is in your glass, not a removal rate. For a before and after, see the trihalomethanes report below.
Lab tests of the water that comes out of the pitcher.
Water from an Alkanatur pitcher was tested against the drinking-water rules in force at the time (Royal Decree 140/2003, based on EU Directive 98/83/EC). The lab's conclusion: suitable for human consumption. No E. coli, enterococci, Clostridium perfringens or coliform bacteria were found. This report includes the bacteria tests and replaces our 2015 bacteria-only test.
Tap water had 35 ppb of trihalomethanes in total (26 ppb of it chloroform). After the Alkanatur filter the total was under 10 ppb and chloroform was under 5 ppb.
What the pitcher adds to the water, and what it does not.
Tap water measured 3 mg/L of magnesium. Water through the Alkanatur pitcher measured 18 mg/L.
Sodium in the Alkanatur pitcher water was 6.6 mg/L, the same as the tap. Another pitcher tested in the same study measured 17 mg/L.
Ultra-pure water and two bottled mineral waters were filtered through the pitcher. Their pH rose to between 9.3 and 9.7, and they needed more acid to bring the pH back down than before filtering.
Tests and declarations about the plastics and parts that touch your water.
The institute's Department of Food Safety certifies that the Alkanatur Drops set (pitcher, filter cartridge and water bottle) does not pose a threat to human health when used as intended.
The institute reports that the pitcher and filter materials are certified by their manufacturers as suitable for food contact. It certifies that the pitcher can be used with good results to treat drinking water.
Water kept in the pitcher was tested under EU Regulation 10/2011 for substances that can migrate out of plastic, including phthalates, BPA and BHT. All were at or near the lowest detectable level, far below the EU limits (for example, BPA under 0.00005 mg/kg against a limit of 0.05).
Water stored in the pitcher was tested in laboratory cell models for estrogen-like and androgen-like activity. The results did not differ from the controls.
Our declaration that the raw materials and additives in the pitcher and filters contain none of 31 listed substances, including BPA, phthalates, PVC, PFOA, PFOS, lead and mercury.
The supplier of the PET used for bottles and preforms declares that it contains no BPA, ESBO or phthalates.
Calcium sulfite is a chemical many shower filters use to remove chlorine. This report looked for it in an Alkanatur shower filter.
An Alkanatur shower filter was analyzed by X-ray diffraction and X-ray fluorescence. No sulfites were found in the material or in water treated with it, and calcium sulfite was calculated at under 0.3%. The lab describes it as a sulfite-free material.
UNE 149101 is a standard for equipment that treats drinking water inside buildings. The water from the equipment is tested in an accredited lab against drinking-water limits based on the European Union's (EU) Directive 2020/2184.
UNE 149101:2025 updates the 2015 standard we were first certified under. Our 2025 report covers 120+ tests, including 20 PFAS compounds such as PFOA and PFOS. PFAS were not part of the 2021 analysis.
No. NSF/ANSI is the standard most often used in the US and Canada, and our pitcher was not tested to it. It was tested to UNE 149101 against EU-based drinking-water limits. Read the full report to see exactly what was measured.
Not all of them. The 2025 UNE report measures the water that comes out of the pitcher and compares it with the legal limits. The 2020 trihalomethanes report compares tap water before and after filtering.
The lab found less than its method can measure. 'Lead: under 1 µg/L' means no lead was found at that level.
The tests were done in Europe, so the official documents are in the local language. Each PDF here is an English translation. Want a copy of an original? Email info@alkanatur.co.
Each PDF is an English translation, and the small preview images show the original documents.