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Can you use distilled water for making coffee and tea?

Quick answer

You can, but it is not ideal. Distilled water has had its minerals removed, and the minerals (mainly calcium and magnesium) help extract flavor, so coffee made with distilled water often tastes flat. For better coffee, use filtered or lightly mineralized water, or add a mineral product made for brewing. Some espresso machine makers advise against pure distilled water.

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In this article
  1. Can you use distilled water for coffee?
  2. What water is best for coffee?
  3. What about tea?
  4. How can you fix distilled water for coffee?
  5. Should you use distilled water in an espresso machine?

Can you use distilled water for coffee?

Yes, it is safe to drink, but the taste is often poor. Distilled water is almost free of minerals, and calcium and magnesium help pull flavor out of coffee grounds. Coffee sites commonly describe distilled-water coffee as flat, thin or under-extracted, though they differ on the exact mechanism.

What water is best for coffee?

The Specialty Coffee Association gives targets for brewing water. As summarized by one coffee site, they are total hardness of 50 to 175 ppm as calcium carbonate, carbonate hardness of 40 to 75 ppm, and a pH of 6.5 to 8. Distilled water is far below these. Very hard water is the opposite problem: it can taste dull and leave limescale in machines.

Water Typical result
Distilled, deionized Often flat or thin; little scale in the machine
Filtered tap, moderate minerals Usually the best everyday choice
Very hard tap water Dull taste, limescale build up

What about tea?

Tea is generally considered more forgiving than coffee. Distilled water is acceptable for tea, though some people find the taste a bit flat. Try it next to your usual water and judge for yourself.

How can you fix distilled water for coffee?

  • Mix distilled water 50-50 with filtered tap water.
  • Use a mineral packet sold for coffee brewing and follow its directions.
  • Use a filter jug and test a small batch.

Should you use distilled water in an espresso machine?

Check the manual. Some machines use sensors that need some mineral content in the water, and some makers and retailers warn that pure distilled water can cause sensor problems or corrosion. Follow your maker’s guidance for water type and descaling.

This is practical guidance; taste is personal, so test and compare.

People also ask

Is distilled water bad for coffee?

It is safe but often gives flat coffee because it has no minerals to help extraction.

Can I use distilled water for tea?

Yes. It is more forgiving than coffee, though taste can seem flat.

What water do coffee experts recommend?

Clean water with moderate minerals, about 50 to 175 ppm total hardness and a pH of 6.5 to 8, according to SCA targets.

General information only, not medical advice. If you have a health condition or are pregnant, ask your doctor before changing what you drink.

Sources

  1. Coffee Business Intelligence: Coffee Quality, How Much of it is the Water, read 5 Nov 2026
Written by Drinks Type Editorial Team · Published Aug 4, 2024 · Updated Nov 5, 2026
About · How we verify this · Editorial policy · Corrections

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