Hario Teapot 700ml vs 450ml: Which Size Should You Buy?
Choosing between the 450ml and 700ml Hario glass teapot is the most common question buyers face. Both sizes use identical borosilicate glass quality and stainless mesh filters. The difference is purely practical — and getting it right means you'll enjoy every brew instead of constantly wishing for more or less tea.
The Simple Answer
- Brew for 1–2 people: Get the 450ml
- Brew for 3–4 people, or want multiple cups without re-steeping: Get the 700ml
If you're unsure which category you fall into, read on — there are nuances that matter.
What Each Size Actually Yields
| Metric | Hario 450ml | Hario 700ml |
|---|---|---|
| Japanese tea cups (150ml) | 3 cups | 4–5 cups |
| Western mugs (250ml) | 1–2 mugs | 2–3 mugs |
| Tea for 1 person | 3 Japanese cups → 2–3 steeps | More than you want at once |
| Tea for 2 people | 1–2 Japanese cups each | 2–3 Japanese cups each |
| Tea for 3–4 people | Short on the first pour | 1–2 Japanese cups each |
| Cold brew capacity | About 2 tall glasses | 3–4 tall glasses |
The Multiple-Steeps Factor
Japanese loose leaf teas — especially hojicha, genmaicha, and kabusecha — can be steeped 2–4 times from the same leaves. This changes the size calculation significantly:
A solo tea drinker with the 450ml pot can brew 3 cups from one steep, then re-steep for 2–3 more cups at different flavor profiles. You get variety and volume without any waste. The 700ml for a single person often means steeped tea sitting in the pot, cooling and becoming over-extracted.
Two people using a 450ml pot get 1–2 cups each per steep, then re-steep together for a second serving. This mirrors how Japanese tea is traditionally enjoyed — multiple short steeps reveal different aspects of the same leaves.
Heat Retention Differences
Larger volume retains heat longer. In practical terms:
- 450ml pot: tea cools from 85°C to comfortable drinking temperature (60–65°C) in about 10–12 minutes
- 700ml pot: takes 15–18 minutes for the same temperature drop
For slow sippers who want tea to stay warm across a long reading session, the 700ml is slightly better. For active brewers who drink each cup quickly and re-steep, the difference is negligible.
Storage and Shelf Space
The 450ml Hario Chacha Kyusu Maru is compact — about 16cm at its widest, 13cm tall. It fits in virtually any cabinet and stores neatly on a counter. The 700ml version is proportionally larger and may require a dedicated shelf spot.
If cabinet space is at a premium, the 450ml is easier to live with daily.
Fridge Use for Cold Brew
Both sizes can be used for cold brew tea in the fridge. The 450ml pot:
- Fits most refrigerator door shelves easily
- Makes a single person's cold brew supply (2 cups)
The 700ml pot may require a main shelf rather than a door shelf depending on your fridge layout, but yields a 3–4 day cold brew supply for one person.
Which Hario Teapot Models Come in Both Sizes
The Hario Chacha Kyusu Maru is available in both 450ml and 700ml. This is the model most people should buy — it's available in the size that best suits your needs. If you're still unsure which size fits your lifestyle, you can review the key factors in see full buyer's guide to make a confident decision.
The Hario Bona Tea Maker is available only in 700ml. If the Bona's design appeals to you, the 700ml decision is already made.
The Hario Chaho is 450ml only — designed specifically for focused solo or two-person sessions.
Browse Hario Chacha Kyusu Maru in both sizes
Our Recommendation by Household Type
| Situation | Recommended Size | Why |
|---|---|---|
| Solo daily tea drinker | 450ml | Three cups per steep, no waste |
| Two people who both drink tea | 450ml or 700ml | 450ml works; 700ml if you want more volume per steep |
| Family of 3–4 | 700ml | One steep fills everyone without a second round |
| Office brewing (4+ people) | 700ml (or two 450ml) | Higher volume needed |
| Primarily cold brew use | 700ml | Larger batch = less frequent brewing |
| Gift for someone unknown | 450ml | Safer size for unknown household |
Frequently Asked Questions
Can I use the 450ml Hario for a family of four?
It's small for four people at once — you'll get about 1.5 small Japanese cups per person from one steep. If you're willing to do two quick steeps back-to-back (which takes just 3–4 minutes), the 450ml works. Otherwise, the 700ml or two 450ml pots is more practical.
Is the 450ml Hario Chacha Kyusu easier to pour?
Slightly — the lighter weight of the 450ml makes one-hand pouring easier, especially late in a session when you're tired. The 700ml full of hot water weighs noticeably more. Both have good balance from the side handle design.
Does size affect the flavor of the tea?
Indirectly. A larger pot with the same amount of leaves relative to water produces the same flavor if the ratio is held constant. Where size affects taste: if you use the same 450ml leaf quantity in a 700ml pot (too little relative to water volume), the tea will be weak. Always adjust leaf quantity proportionally to pot size.
What is the standard tea serving size in Japan?
Traditional Japanese tea servings are 120–150ml per cup — much smaller than Western coffee mugs. Japanese tea culture emphasizes multiple short, frequent pours rather than one large cup. This is why even the 450ml pot satisfies multiple people through sequential cups and re-steeps.
Should I buy both sizes?
Most households don't need both. Buy the size that fits your most common brewing scenario. If you regularly entertain tea guests but also want something for solo daily sessions, two 450ml pots (one for storage, one in use) is more practical than one 450ml + one 700ml.
