An oke’s circular outline does not explain how its sides were made. Kagawa Prefecture’s Kagawamono craft reference describes Sanuki oke and taru through their parts: narrow boards, copper hoops and a bottom board. It is a construction description, not a specification for every vessel currently sold.
Technique and structure
The reference says narrow boards made from Yoshino cedar, fir or hinoki are arranged into a cylinder, tightened with copper hoops and fitted with a bottom board. Those details distinguish the assembled sidewall from the hoop holding it around its circumference and the board closing the base. Reading the three together is more informative than treating the visible band as decoration. The description does not identify the wood species, adhesive or finish of an individual object merely from its round shape.
A construction used for different objects
The same reference lists sushi tubs, rice containers and bath buckets alongside newer lunch boxes and interior products. Shared construction vocabulary is therefore not a shared instruction for heat, cleaning or food storage. The intended use still belongs with the particular maker’s specification.
For international readers
Ask for the actual product’s wood, finish and use instructions. Neither a regional name nor the presence of a copper hoop establishes antibacterial effects, dishwasher suitability or an uncoated food-contact surface.
Global shipping and buying
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日本語
讃岐桶樽の構造：側板・銅タガ・底板を分けて読む
香川県の「かがわもの」は、讃岐桶樽を吉野スギ、モミ、ヒノキ製の細長い板を円筒形に並べ、銅タガで締めて底板を入れる構造と説明します。側板の組み立て、外周の締結、底板という別々の要素を読むと、製品名だけでは分からない構成が見えてきます。個別製品の樹種、接着剤、塗装や食洗機対応はこの一般説明から推測しません。