Meaning
煮 describes one cooking method: applying heat to food through liquid — boiling, simmering, braising. Open a Japanese recipe and you'll find it. Scan a restaurant menu and there it is again. The liquid changes — plain water, dashi, soy sauce, mirin, sake — but the principle stays the same. That central role in Japanese cuisine explains why 煮 feeds dozens of compound words and idiomatic expressions.
Structurally, 煮 splits into two pieces. The top is 者, meaning person or one who does something. The bottom is 灬 (rekka), the four-dot fire radical — a flattened form of 火 that appears beneath many cooking-related kanji. Together they form a simple, ancient scene: a person (者) tending a fire (灬). Someone hunched over a pot, keeping the flame just right. That picture is the kanji.
Beyond the kitchen, 煮 reaches into figurative territory. 煮詰まる describes a discussion boiled down to its conclusion — or, flipped, a situation so concentrated it has become stuck and can't move forward. 煮え切らない means indecisive or noncommittal: someone who hasn't quite finished boiling, neither one thing nor the other.
煮 has 12 strokes and appears on the Joyo kanji list at the secondary school level (中学校). It sits at N1 on the JLPT scale, reflecting how often it appears in sophisticated written Japanese. For anyone who cooks, reads recipes, or eats at Japanese restaurants, it comes up well before that.
Readings
On'yomi (音読み) — Chinese-derived readings
The on'yomi reading is シャ (sha), a Sino-Japanese borrowing from ancient Chinese. In everyday conversation, you'll rarely hear it. It surfaces mainly in formal and technical compounds — most often in hygiene and sterilization contexts.
Examples using on'yomi シャ:
- 煮沸 (shafutsu) — sterilization by boiling; used in medical, infant care, and food safety contexts
- 煮沸消毒 (shafutsu shōdoku) — disinfection by boiling; seen on product labels, medical instructions, and kitchen hygiene guides
Kun'yomi (訓読み) — Native Japanese readings
Kun'yomi readings are what you'll encounter day to day — in recipes, at the dinner table, on cooking shows. There are two primary ones, and they form a transitive-intransitive pair: one of the most characteristic verb patterns in Japanese.
に・る (ni.ru) — The transitive verb: to boil (something), to simmer (something), to cook (something) in liquid. The cook acts on the food. This is the reading you'll use most often.
- 煮る (niru) — to boil; to cook by simmering (the base transitive verb form)
- 煮物 (nimono) — a simmered dish; one of the fundamental categories of Japanese home cooking, often featuring root vegetables and proteins
- 煮付け (nitsuke) — fish or meat simmered in a savory glaze of soy sauce, mirin, sugar, and sake until the liquid is nearly absorbed
に・える (ni.eru) — The intransitive counterpart: to boil or to be cooked through. Here the food is the subject — it does the boiling. The pair (煮る / 煮える) is a hallmark of Japanese grammar and essential N1 vocabulary.
- 煮える (nieru) — to boil; to be cooked through (intransitive; the food is the subject)
- 煮え湯 (nieyu) — boiling water; also used in the expression 煮え湯を飲まされる (to be betrayed by a trusted person)
- 煮え返る (niekaeru) — to bubble and boil up; figuratively, to seethe with intense anger or indignation
Common Words & Compounds
煮 appears in a wide range of compound words — from everyday cooking terms to formal sterilization vocabulary and figurative expressions. Key compounds organized by theme:
Core cooking methods and classic dishes:
- 煮物 (nimono) — simmered dish; a foundational Japanese home-cooking category featuring vegetables such as daikon, lotus root, and taro, cooked with proteins in seasoned broth
- 煮込み (nikomi) — a slow-simmered stew; dishes cooked over low heat for a long time, allowing flavors to deepen and meld
- 煮込む (nikomu) — to stew; to cook slowly together for an extended period (transitive verb)
- 煮付け (nitsuke) — food, especially fish, braised in a concentrated soy sauce–mirin glaze until almost dry; the classic technique for mackerel (サバの煮付け) and buri (ブリの煮付け)
- 含め煮 (fukumeni) — food simmered gently in a lightly seasoned broth until the flavors are absorbed; a refined technique from kaiseki cuisine
Ingredients and pantry essentials:
- 煮干し (niboshi) — dried small sardines; a key ingredient for dashi stock, found in nearly every Japanese kitchen
- 煮汁 (nijiru) — the liquid remaining after simmering; often reduced and used as a sauce or glaze
Process and technique verbs:
- 煮立てる (nitateru) — to bring a liquid to a full boil (transitive)
- 煮立つ (nitatsu) — to come to a full boil (intransitive; the liquid is the subject)
- 煮詰める (nitsumeru) — to boil down; to reduce a liquid by prolonged simmering; figuratively, to deliberate until a conclusion is reached
- 煮崩れ (nikuzure) — falling apart during cooking; the result of over-simmering until food loses its shape
- 煮沸 (shafutsu) — boiling for sterilization
Figurative and idiomatic expressions:
- 煮詰まる (nitsumaru) — (of a discussion or plan) to reach a conclusion through thorough deliberation; also, to be stuck at an impasse with no fresh ideas
- 煮え切らない (niekiranai) — indecisive; noncommittal; giving vague answers (literally: not finishing boiling)
- 煮え湯を飲まされる (nieyu wo nomasareru) — to be deeply betrayed by someone trusted (literally: to be forced to drink boiling water)
Example Sentences
野菜を鍋でゆっくり煮る。
Yasai wo nabe de yukkuri niru.
I slowly simmer the vegetables in a pot.
魚を醤油とみりんで煮付けるのは日本料理の基本だ。
Sakana wo shōyu to mirin de nitsukeru no wa nihon ryōri no kihon da.
Braising fish in soy sauce and mirin is a fundamental technique of Japanese cuisine.
水が沸騰して大根がよく煮えた。
Mizu ga futtō shite daikon ga yoku nieta.
The water came to a boil and the daikon was cooked through.
母が作った鶏肉とじゃがいもの煮物は懐かしい味がする。
Haha ga tsukutta toriniku to jagaimo no nimono wa natsukashii aji ga suru.
My mother's simmered chicken and potato dish tastes like home.
スープを弱火で三十分煮込むと旨味が増す。
Sūpu wo yowabi de sanjuppun nikomu to umami ga masu.
Simmering the soup on low heat for thirty minutes deepens the flavor.
哺乳瓶は使用後に必ず煮沸消毒してください。
Honyūbin wa shiyōgo ni kanarazu shafutsu shōdoku shite kudasai.
Please sterilize baby bottles by boiling after each use.
彼はいつも煮え切らない態度で返事をするので困る。
Kare wa itsumo niekiranai taido de henji wo suru node komaru.
He always gives such noncommittal answers — it's genuinely frustrating.
議論がようやく煮詰まって、全員が同じ結論に達した。
Giron ga yōyaku nitsumatte, zen'in ga onaji ketsuron ni tasshita.
The discussion finally boiled down to one conclusion, and everyone reached the same decision.
信頼していた友人に裏切られ、まるで煮え湯を飲まされたようだ。
Shinrai shite ita yūjin ni uragirate, maru de nieyu wo nomasareta yō da.
Being betrayed by a friend I trusted felt like being forced to drink boiling water.
大根は長く煮ると煮崩れしてしまうので、火加減に注意が必要だ。
Daikon wa nagaku niru to nikuzure shite shimau node, hikagen ni chūi ga hitsuyō da.
Simmer daikon too long and it falls apart — heat control matters.
Memory Tip
Picture the character in two halves. The top, 者 (person), shows someone bent over a pot. The bottom, 灬 — those four distinctive dots — represents the flames beneath. A Japanese grandmother, a mono (者), crouching beside a fire (灬), stirring a pot of fragrant nimono. Steam rising. The broth barely bubbling. The smell of soy sauce and mirin drifting through the kitchen. That image is the kanji.
For the reading: に (ni) mimics the quiet sound of a low simmer — ni, ni, ni — liquid just barely trembling at the edge of a boil. And those four fire-dots beneath a kanji? They always signal heat. Where there's 灬, cooking usually follows.