茶筅の穂数
A chasen is carved from one piece of bamboo, so a broken tine cannot be replaced — and the tine count is a specification for a job, not a score.
The whisk is hand-carved from a single piece of bamboo. Wikipedia’s article on Japanese tea utensils lists what varies between them: the type of bamboo, the shape of the tines, the number of tines, the thickness and length of the bamboo, and the colour of the thread bound around the base. Different schools prefer different styles, and specific styles exist for thin tea, thick tea, tall bowls, portable sets and outdoor use.
So “80 tines” is not a grade above “60 tines”. It describes a whisk built to whip air into a thin tea. Buying the highest number available because it sounds better is the same error as buying the widest tamper — a specification read as a ranking. And because the whole whisk is one piece of bamboo, a snapped tine is not a repair; it is the beginning of the end of that whisk.
Two things follow for care, and both are about water. A new whisk is stiff and its tines are curled inward; soaking the tines briefly in warm water before first use softens them so they open without snapping. And a wet bamboo whisk left in a drawer is the ordinary way one goes mouldy — it wants air, tines downward-facing but not resting on them. The traditional answer is a kusenaoshi, a wooden or ceramic shaper: the wet whisk is set on it and left to dry, which both dries it in air and holds its shape.
Chasen are made in several places, Takayama in Nara being the best known. Two things are worth checking in a listing, and most give neither. What tea it is for: a whisk built for thin tea and one built for thick tea are different tools, and the tine count follows from that rather than the other way round. Whether it is carved from one piece: that is what a chasen is, and it is also why a snapped tine ends its useful life rather than starting a repair.
There is no shop link on this page. The right whisk depends on which tea you make and, traditionally, on which school you follow — a judgement this site cannot make for you, and one that a tine count on its own does not answer.
Sources The other guides鉄瓶と鉄急須
One boils water and gives you iron. Putting the other on heat cracks its lining for good.
土鍋の目止め
Unglazed clay is porous until rice starch seals it — one simmer, once.
漆器の手入れ
Dishwasher, microwave, sunlight. All normal, all irreversible on urushi.
片刃と利き手
Ground on one side only. The wrong side does not cut badly — it does not work.
土鍋とIH
Induction heats metal, not clay. Most donabe never get warm — and cannot be converted.
熊野筆の毛
Not a quality ladder. Natural hair holds powder; synthetic is built for cream and liquid.
砥石の番手
There is no dominant standard behind the number. Two #1000 stones can cut differently.
錆と経年変化
One protects the blade, the other eats it. Scrubbing the wrong one leaves the knife worse off.
三徳・牛刀・菜切
Two of these are the same knife. And a nakiri suits either hand; the usuba it resembles does not.