One of the most common questions in tea preparation is, “What kind of water should I use?” Along with the leaves themselves, the quality of what goes into the kettle plays a major role in the final cup. This guide explores several options and explains which choices work best for brewing.
Tap Water
Most tea drinkers use tap water. While experienced tea enthusiasts generally do not recommend it as the best option, it remains the most common choice. Novice tea drinkers usually boil it once, while advanced tea drinkers often boil it two to three times to remove as many impurities as possible. However, repeated boiling can remove dissolved oxygen, which may create a flatter taste with less character. Some tea drinkers believe a flatter profile accentuates the aroma of fragrant teas, while others believe it dulls flavor. Experimenting with different boil amounts for each tea type can help determine personal preference.
Alkaline Water
Alkaline varieties have a pH level of 7 or higher. Tea drinkers rarely use them because the alkaline composition changes flavor. We do not personally enjoy tea prepared this way, although some flavored iced teas can benefit from this type of source.
Sparkling Water
Tea drinkers generally mix sparkling varieties with tea after brewing. Tea makers usually brew tea with another source, such as mineral-based options, before adding sparkling varieties cold. Boiling carbonated varieties for preparation is uncommon. Tea drinkers rarely add sparkling varieties directly to a pot of leaves.
Spring Water
Spring varieties remain one of the most common choices for brewing. Quality depends on the source, but flowing mountain spring sources and deep well sources are often preferred because of their purity and stability. Clean groundwater is also considered an excellent option for preparation. In Asia, tea masters commonly choose spring-fed sources for brewing.
Packaged Water
Packaged, purified, and distilled varieties contain very few impurities, making them popular for daily consumption. For brewing, natural spring sources with low mineralization, low hardness, and low alkalinity are generally recommended.
Mineral Water
Mineral-based options are another popular choice for brewing. Many tea drinkers purchase packaged mineral varieties for convenience. However, packaged products can create concerns around excessive plastic use and exposure. Daily tea drinkers may also experience issues from consuming too many calcified minerals.
Distilled Water
Distilled varieties contain almost no minerals. When used for brewing, they create an infusion similar to filtered options. Tea brewed this way often appears lighter in color and highly transparent.
Reverse Osmosis Water
Reverse osmosis filtration is becoming more popular in the United States, though tea drinkers in Asia use it less frequently. This filtration method creates a clearer infusion with fewer impurities, though it can slightly alter aroma.
What Is the Best Option for Brewing Tea?
Mountain spring sources are widely considered the best choice for brewing, followed by mineral-based options, purified varieties, and tap sources. Sourced from mountainous rock valleys or deep underground springs, mountain spring sources are known for purity and stability. They help enhance color, aroma, flavor, and texture for a more balanced cup.
For tap sources, soft and medium-hard varieties are ideal for preparation. Excessively hard varieties contain high levels of calcium and magnesium, which can reduce aroma and limit flavor extraction. Since tap sources often fall within the hard or very hard range, they may weaken the overall experience.
Recommended Brewing Practices
- Natural spring sources work well for nearly all tea types.
- Boiling several times before pouring into a teapot can help reduce impurities.
- Hot temperatures are generally preferred for preparation, though some lighter oolongs can be brewed cold.
- Cleaning teaware with hot temperatures before brewing helps warm the teapot and cups while preparing them for flavor and aroma.
Summary
Mountain spring sources remain the preferred choice for brewing because they support better flavor, aroma, and texture extraction from tea leaves. Mineral-based, purified, and distilled varieties can also work well depending on the tea style and personal preference, while hard tap sources and alkaline varieties are generally less desirable for quality brewing.
