Hydrogen water with higher hydrogen concentration often has a more noticeable fresh or cool sensation.
Some high-concentration hydrogen water, made using advanced processes, may impart a slight sweetness or other subtle flavors.
Water Source
Water containing minerals or trace elements can influence the flavor of hydrogen water:
Silica-rich water: Slightly sweet taste.
Magnesium-rich water: Slightly bitter taste.
Poor-quality or polluted water sources can lead to off-flavors, such as musty or rotten smells.
Production Methods and Equipment
Electrolyzed hydrogen water: May carry slight odors due to byproducts:
Ozone: Fishy smell.
Chlorine: Disinfectant-like odor.
Physical dissolution method: Produces hydrogen water closer in taste to regular water but might still exhibit a fresh or cool sensation at higher hydrogen concentrations.
Poorly maintained or unclean equipment can introduce unpleasant odors.
Storage Conditions and Duration
Improper storage (e.g., exposure to heat, light, or air) accelerates hydrogen escape and may alter water composition, resulting in flavor changes.
Freshly prepared hydrogen water typically has a more distinct flavor, while prolonged storage diminishes hydrogen concentration, making it taste more like regular water.
Microbial growth due to poor storage can also cause off-flavors.
Individual Sensory Differences
People’s sensitivity and preferences for flavors vary.
Some may find hydrogen water indistinguishable from regular water, while others may notice subtle sweetness or freshness.
Common Descriptions of Hydrogen Water Taste
Neutral/No Flavor
Many perceive hydrogen water to be similar to regular water—colorless, odorless, and tasteless.
This is especially true when hydrogen concentration is low and the water source is pure.
Fresh and Sweet
High-quality hydrogen water might taste fresh and slightly sweet, attributed to:
Premium water sources containing beneficial minerals like silica.
High hydrogen concentrations that create a mild cool or refreshing sensation.
Distinct Odors (Uncommon)
Fishy smell: Caused by ozone generated during electrolysis.
Disinfectant-like smell: Due to traces of chlorine gas during production.
Rotten egg smell: Indicates the presence of hydrogen sulfide.
Such flavors usually result from improper production processes, unclean equipment, or poor storage.
