Distilled water is safe to drink and there is no reason to avoid it, so the honest answer to whether you can drink it every day is yes. The more useful question is whether you would want to, because daily use raises three practical issues that rarely come up when someone buys a bottle for a steam iron: taste, cost and storage.
The taste question in daily use
Distillation removes essentially all dissolved material, and the USGS describes hardness as dissolved calcium and magnesium, which along with bicarbonates give ordinary water its character. Without them, water tastes flat, and that becomes more noticeable when it is all you drink and when it is used for tea and coffee, where the mineral content genuinely affects extraction. Some people adapt quickly. Many find that the water they thought they wanted is not what they enjoy drinking, which is worth discovering before committing to a routine.
What buying it daily costs and involves
Distilled water bought by the bottle is one of the more expensive ways to drink water, and drinking it every day means a regular carrying and storage commitment: bottles in, empties out, and space for both. Home distillers exist and remove the carrying, but they are slow, use a meaningful amount of electricity to boil water continuously, and need descaling as the minerals they remove accumulate in the boiling chamber. Neither route is difficult, but both are a routine rather than a one off purchase.
The minerals argument, kept in proportion
The concern usually raised is that drinking demineralized water long term deprives the body of calcium and magnesium. In a normal diet, food supplies the great majority of both and water a small share, so the effect for most people is modest. It is a fair consideration for someone whose diet is already low in those minerals, and it is the reason many households prefer reverse osmosis with a remineralization stage, which gives a similar reduction in contaminants while putting a small mineral content back.
The cheaper route to the same result
If the reason for drinking distilled water is a distrust of the tap supply, treat the supply instead. Find out what is actually in it, then fit the stage that addresses it: carbon for chlorine and taste, reverse osmosis with remineralization for a broad reduction that still tastes like water, a softener if the complaint is scale. All of those cost less over a year than buying distilled water, produce on demand, and remove the carrying entirely. Our water softener guide covers the hardness case.
Questions people ask about can u drink distilled water
Is it safe to drink distilled water every day?
Yes. It is water with the dissolved material removed. The objections are about taste and mineral intake rather than safety.
Why does it taste flat?
Dissolved minerals give water its taste, and distillation removes them. The same effect appears with reverse osmosis water before remineralization.
Is a home distiller worth it?
It removes the carrying but is slow, uses electricity to boil continuously, and needs descaling as removed minerals accumulate in the chamber.
What is the cheaper alternative?
Treating the tap supply: carbon for taste, or reverse osmosis with a remineralization stage, which gives a broad reduction and still tastes like water.