TDS stands for Total Dissolved Solids. It is the measure of all organic and inorganic substances dissolved in water, including minerals, salts, metals, and small amounts of organic matter.
TDS is expressed in ppm (parts per million) or mg/L and is one of the most important indicators of water quality.
Water naturally picks up minerals and salts as it flows through soil and rocks.
Purification processes (like RO, distillation, ion exchange) reduce TDS levels by removing dissolved particles.
TDS includes both beneficial minerals (calcium, magnesium, potassium) and harmful contaminants (lead, arsenic, nitrates, fluoride).
Low TDS (<50 ppm): Very pure but often lacks essential minerals, leading to “flat-tasting” and less nourishing water.
Optimal TDS (50–150 ppm): Balanced level, providing both purity and beneficial minerals for hydration, bone strength, and metabolism.
High TDS (>300 ppm): May contain excess salts and toxic metals, which can harm health and organs like kidneys.
Indicates overall water quality.
Helps determine the balance between purity and mineral presence.
Guides the selection of suitable purification technology (RO, UV, etc.).
Essential for maintaining healthy drinking standards.
⚠️ TDS level alone does not define safety – type of dissolved solids also matters.
⚠️ Very low TDS may deprive water of beneficial minerals.
⚠️ Very high TDS can damage appliances, pipes, and human health.
TDS (Total Dissolved Solids) is the total concentration of minerals, salts, and organic matter dissolved in water. An ideal TDS level (80–250 ppm) ensures safe, palatable, and mineral-rich drinking water. Both extremely low and excessively high TDS levels can negatively affect health and water quality.
