sudachi; Citrus sudachi
A small, green Japanese citrus fruit, similar to a lime but with a distinct, sharp flavor. Used as a condiment, often squeezed over grilled fish, sashimi, or added to ponzu. The fruit is typically harvested while still green.
Squeezing sudachi over grilled fish adds a refreshing flavor.
Tokushima Prefecture is famous as a production area for sudachi.
Kabosu is another Japanese citrus, larger and milder than sudachi, often used similarly but with a slightly sweeter, less sharp taste.
Yuzu is a more aromatic citrus, used for its zest and juice in a wider range of dishes, including hot pots and desserts. Sudachi is sharper and more lime-like.
Lime is a close Western equivalent, but sudachi has a unique, more complex flavor and is rarely eaten raw; it is used as a seasoning.
It is usually written in kana. This is the most common spelling.
Katakana spelling is also used, especially in botanical or culinary contexts.
Alternate kanji spelling using 酢 (vinegar). Rarely used.
Kanji spelling using 酸 (acid) and 橘 (citrus). Rarely used; the kana form is strongly preferred.
Alternate kanji spelling using 醋 (vinegar). Rarely used.
The name すだち likely comes from 酢橘 (vinegar citrus), referring to its sour juice. The exact historical derivation is uncertain.