Choose a pitcher with transparent contaminant data and reasonable cartridge cost. Treat negative ORP and alkaline-water wellness claims separately from verified filtration performance.
Alkanatur Drops: high-capacity Spain-focused option
Alkanatur currently lists the Drops pitcher at 1.4 L capacity with a filter rated for about 400 L, filtration of roughly one litre in four minutes, magnesium addition around 18 mg/L and a target pH around 9.5.
The company also publishes broad contaminant-reduction claims for chlorine, metals, pesticides and other substances.
What pH does—and does not—tell you
Higher pH means the water is more alkaline. It does not prove that a pitcher removes lead, PFAS, nitrate or another contaminant.
Filtration claims should be evaluated separately from alkalinity, mineral addition and taste.
Filter capacity drives recurring cost
A 400 L cartridge can last several months for one person but much less in a household drinking multiple litres per day.
Compare cost per litre rather than only the pitcher price.
When RO is a better fit
If the goal is broad dissolved-contaminant reduction, reverse osmosis has a different treatment mechanism and stronger established standards for that purpose.
A remineralization stage can be added after RO if mineral taste is preferred.