Kumquat
A citrus small enough to eat whole, and the only one whose peel is sweeter than its flesh. Salted and preserved kumquat drinks are common across southern China, Taiwan and Vietnam, and the preserved jars keep for years.
Identity
- Botanical name
- Citrus japonica
- Family
- Rutaceae
- Part used
- Fruit
- Origin
- Southern China; grown across East and Southeast Asia
- Drunk in
- Guangdong, Fujian, Taiwan, Vietnam
Character
Sweet peel and sour flesh together, and the salted version adds a savoury depth that makes the drink far more interesting than sweetened citrus usually is.
Notes: orange peel, salt, marmalade
History
Long cultivated in southern China and carried to Europe in the 1840s by the plant collector Robert Fortune, whose name it briefly held. Potted kumquat trees are a Lunar New Year fixture in Cantonese and Vietnamese households, where the fruit’s name puns on gold.
How it is drunk
Preserved in salt or sugar across Guangdong, Taiwan and Vietnam and stirred into hot or cold water, and combined with lemon and honey in Taiwanese drink shops. The tree is as much a New Year decoration as the fruit is an ingredient.
Production
Whole fruit is packed in salt and left for months or years, going progressively darker and softer, or candied in sugar syrup. Salted kumquat becomes almost black with age and is valued for it.
Preparation
Infusion · Cold infusion
Herbal infusion (tisane)
1–2 g/100 ml · 85–90 °C · 3 min
Category-typical practice rather than a measurement for this specific botanical. Most infusions are far more tolerant of a long steep than tea is.
What gets confused
Salted and candied preparations are different products with different uses. Old salted kumquat is nearly black and that is a sign of age rather than spoilage.
Common mistakes
- Peeling it. The peel is the sweet part and the flesh is the sour one, which is the reverse of every other citrus.
Related botanicals
- Yuzu — East Asian citrus preserved in sugar rather than dried, spooned into hot water rather than steeped.
Comparisons
- Yuzu vs kumquat — Two East Asian citrus preserved rather than dried, spooned into hot water rather than steeped. One is knobbly and aromatic with almost no juice; the other is small enough to eat whole.
Evidence for this page
The botanical name, family and distribution above are checked against an external authority. Citrus japonica Thunb. — GRIN-Global Taxonomy record— retrieved and read, not countersigned by a named human. That source covers naming and distribution only. Everything else on this page — history, culture, production, flavour, preparation and buying advice — is TeaHQ’s own synthesis with no external source behind it.
Brewing parameters here are typical practice for the category rather than measurements of this plant, and each set says so.
This page makes no safety claim. It describes what Kumquat is, where it comes from and how it is prepared — not what it does to a person. The absence of a safety note here is not a statement that the plant is safe. How TeaHQ handles this.