What Size Gaiwan Should I Use?

For most individual tea drinkers, a 100–120 ml gaiwan is the most versatile starting size, but the ideal gaiwan capacity depends on how you brew, how many people you serve, and how much tea you want to make at one time.

Gaiwan size determines how much water you can brew, how much tea you need to maintain your preferred concentration, and how practical the vessel is for one or more drinkers.

Why Does Gaiwan Size Matter?

The size of a gaiwan directly determines how much water it can hold.

That sounds obvious, but it has important consequences.

Suppose you use the same amount of tea in a 90 ml gaiwan and a 180 ml gaiwan.

The larger vessel contains more water, which changes the concentration of the resulting tea.

If you increase the tea quantity to compensate, you also change the leaf-to-water ratio.

This is why gaiwan size should be considered together with your brewing method, tea quantity, and preferred serving size.

The question is not simply:

“How much water does this gaiwan hold?”

It is:

“How much tea do I want to brew, and how much tea do I want to serve?”

What Is the Best Gaiwan Size for Beginners?

For a beginner buying one gaiwan, 100–120 ml is an excellent general-purpose range.

This size works well because it balances several competing needs.

It is:

• Small enough for gongfu brewing

• Large enough for practical everyday drinking

• Convenient for individual use

• Suitable for many Chinese teas

• Easy to compare across repeated infusions

• Not excessively large when exploring expensive teas

A 110 ml gaiwan, for example, can work as a daily vessel for one drinker while still providing enough tea for tasting.

60–90 ml Gaiwan: Who Is It For?

Small gaiwans are especially useful for concentrated gongfu brewing and tea evaluation.

They allow you to use a relatively high leaf-to-water ratio without producing an excessively large serving.

They are excellent when:

• You drink alone

• You taste expensive teas

• You want small, concentrated infusions

• You compare multiple teas

• You enjoy many short infusions

• You want precise control over each infusion

A 70–80 ml gaiwan can be surprisingly effective for tasting.

The trade-off is that it may feel small for casual drinking or longer tea sessions.

100–120 ml Gaiwan: The Versatile Middle Ground

This is arguably the most useful range for a first gaiwan.

It provides enough capacity for practical brewing without becoming unnecessarily large.

A 100–120 ml gaiwan can work particularly well with:

• Oolong

• Green tea

• White tea

• Chinese black tea

• Pu-erh

• Scented tea

It is also a useful size for learning gongfu brewing because you can clearly observe how changing the amount of tea and infusion time affects the final cup.

For a MoriMa Tea customer who says, “I only want one gaiwan,” this is the size range I would generally recommend first.

130–150 ml Gaiwan: A More Generous Serving

A 130–150 ml gaiwan is useful when you want slightly more tea per infusion.

It may suit:

• Larger individual servings

• More casual gongfu brewing

• Two lighter drinkers

• People who prefer less concentrated tea

However, a larger vessel may require more tea to maintain a similar concentration to a smaller gaiwan.

That means your tea consumption can increase as capacity increases.

160–200 ml Gaiwan: When Does Bigger Make Sense?

Larger gaiwans are more practical for casual drinking and sharing.

They can work well when:

• You drink tea in a more Western style

• You want fewer refills

• You serve more than one person

• You prefer larger servings

• You prefer less concentrated tea

• You want more capacity for a longer drinking session

The trade-off is that a larger capacity is less compact for concentrated gongfu brewing.

For this reason, larger gaiwans are usually better suited to people who prioritize serving volume over small, repeated infusions.

Does Gaiwan Size Affect Tea Flavor?

Yes, indirectly.

The size itself does not “add flavor,” but it changes the relationship between the amount of water and the amount of tea being brewed.

A smaller gaiwan makes concentrated brewing convenient because a relatively small amount of water can be paired with a controlled amount of tea.

A larger gaiwan naturally gives you more water per infusion unless you increase the amount of tea accordingly.

The relationship between capacity and leaf quantity is therefore more important than capacity alone.

If you want to understand the broader ways a gaiwan can influence extraction, aroma, heat and brewing performance, see our guide to how a gaiwan affects tea.

Tea-to-Water Ratio Matters More Than Capacity Alone

Imagine two gaiwans:

100 ml gaiwan: 5 g tea

150 ml gaiwan: 5 g tea

The second brew contains more water relative to the same amount of tea.

The resulting concentration can therefore be noticeably different.

Now imagine:

100 ml gaiwan: 5 g tea

150 ml gaiwan: 7.5 g tea

The ratios are much closer.

This illustrates why you should not compare gaiwan sizes without considering the amount of tea being used.

There is no universal “correct” grams-per-gaiwan rule.

Different teas and brewing styles require different approaches.

What Gaiwan Size Works for Different Teas?

Gaiwan size should not be chosen solely by tea type. Your brewing method and preferred serving size usually matter more.

These ranges are practical starting points rather than strict rules.

The same tea can work well in different capacities if you adjust the amount of leaf and water accordingly.

Should One Person Use a 150 ml Gaiwan?

Absolutely.

There is no rule that one person must use a small gaiwan.

If you prefer a larger serving and fewer infusions, 150 ml may be more comfortable for your routine than a 100 ml vessel.

The correct size is the one that matches your drinking habits.

Tea brewing is not an examination with one correct answer.

What Size Gaiwan Should Two People Use?

For two people, 120–150 ml can be practical for concentrated gongfu brewing, while 150–200 ml may be more comfortable for larger servings.

Again, serving size matters more than a rigid rule.

If both people want only small tasting portions, a 100–120 ml gaiwan may be enough.

If you want more generous servings, choose a larger capacity.

Should You Own Multiple Gaiwan Sizes?

Eventually, perhaps.

A tea enthusiast may find different capacities useful for different situations.

For example:

80 ml: concentrated tasting

110 ml: everyday gongfu brewing. For an example of a 110 ml artisan gaiwan designed for Gongfu brewing, see the Cicada Wing Gaiwan.

150 ml: casual personal drinking. For an example of a 150 ml ceramic gaiwan, see the Magnolia Flower Ru Ware Gaiwan.

180 ml+: sharing or larger servings

But beginners usually do not need all four.

Start with the size you will actually use.

Once you know which capacity fits your brewing style, you can compare different gaiwan styles and sizes in our Gaiwan collection.

How to Choose Your Gaiwan Size

Before buying, answer five questions.

1. How Many People Usually Drink?

One person generally needs less capacity than a group.

If you usually brew for yourself, a smaller gaiwan gives you more control over individual servings.

If you regularly serve two or more people, a larger capacity may be more practical.

2. How Do You Brew?

Gongfu brewing generally favors smaller vessels because it relies on repeated infusions and controlled amounts of water.

More casual or Western-style brewing can benefit from a larger capacity.

3. How Much Tea Do You Usually Make?

Think about the amount you actually want to drink in one infusion rather than choosing a gaiwan simply because the capacity number looks large or small.

4. How Strong Do You Like Your Tea?

Smaller vessels make concentrated brewing convenient.

Larger vessels can be useful when you prefer a more generous serving or lower concentration.

5. Do You Want One Versatile Gaiwan?

If yes, 100–120 ml is a particularly safe choice for most individual tea drinkers.

Capacity Is Not the Same as Usable Capacity

A gaiwan advertised as “120 ml” may not be intended to be brewed to the absolute brim.

You need room to place the lid, allow the tea to move naturally, and pour without spilling.

For this reason, the advertised capacity should be understood as a reference point rather than an instruction to fill the vessel completely.

Two gaiwans with the same nominal capacity can also feel quite different in everyday use because their proportions and shapes may differ.

If you are comparing vessels with the same capacity but different proportions, our gaiwan shape guide explains why geometry matters when choosing a vessel.

The Best Gaiwan Size Is the One You Will Use

A 70 ml artisan gaiwan may be beautiful.

A 180 ml hand-painted gaiwan may be impressive.

But if neither matches your brewing habits, neither is the right purchase.

For most beginners, a 100–120 ml porcelain gaiwan offers an unusually good balance between versatility, control, and ease of use.

Once you know your preferred tea and brewing style, you can move toward more specialized capacities and designs.

FAQs

Is 100 ml too small for a gaiwan?

No. A 100 ml gaiwan is a very practical size for individual gongfu brewing. It allows concentrated infusions without requiring a large amount of tea or water.

Is a 150 ml gaiwan good for beginners?

Yes. It is particularly suitable if you prefer larger servings or more casual brewing. It is simply less compact than a 100–120 ml gaiwan for concentrated gongfu tea.

Should I choose gaiwan size based on tea type?

Partly. Brewing style and serving size are usually more important than tea type alone. Different teas can be brewed successfully in the same gaiwan if you adjust the amount of tea and water.

For a first gaiwan, choose a versatile size before buying a specialized one.