Taste is a complex experience
Temperature, minerals, level of carbonation, packaging and personal expectations can change how we perceive water. Two people can describe the same water differently without either of them being wrong.
Do not attribute everything to a single number
The deuterium concentration is a technical information. It is not a guarantee of taste and should not be used as an automatic explanation for freshness, purity or enjoyment of consumption.
Test without major conclusions
If you have a preference, a simple comparison and a carefully read label are sufficient for daily choice. Do not transform perceived taste into evidence about health or treatment.
Conclusion
Taste counts for the enjoyment of drinking water. It is different from laboratory analysis and clinical evidence.
Disclaimer: This material is educational. It does not diagnose, treat, or replace the recommendations of a health professional.