Japan · Glass / Glassblowing

Ryukyu Glass Recycled-Bottle Glassblowing

琉球ガラス (Ryūkyū Garasu)

Ryukyu glass (琉球ガラス) is Okinawa's hand-blown glass, made by free-blowing (chūbuki) and mold-blowing (katabuki). It began in the mid-Meiji era, when glassmakers from Nagasaki and Osaka came to Naha and made lamp chimneys and jars from discarded bottles. The workshops were destroyed in the air raid of 10 October 1944. In the post-war shortage glassmakers melted what the occupation threw away: beer, Coca-Cola and 7-Up bottles, awamori bottles, jam and butter jars from US bases. Bottle origin became color: brown from beer and awamori, green from 7-Up and shikuwasa juice, clear from jam and butter jars. The bubbles and thick walls left by imperfectly cleaned cullet would have been rejects elsewhere, but American soldiers and their families, ordering from the late 1950s, took them as rustic charm. Inamine Seikichi later made the defect deliberate as 'bubble glass' (awa-garasu). Recycled glass is now about 30% of production. The craft became an Okinawa Prefecture traditional craft in 1998.

Risk level: Stable · Not inscribed. Okinawa Prefecture traditional craft (1998). Not a METI Traditional Craft Product

Alternate Names
Ryukyu glass; Okinawan glass; saisei garasu (recycled glass); awa-garasu (bubble glass); chūbuki (free-blowing); katabuki (mold-blowing)
Geographic Center
Okinawa Island — Naha (Okuhara Glass, est. 1952), Itoman (Ryukyu Glass Village), Onna and other workshops
Community / Ethnic Group
Okinawan (Ryukyuan) glassblowers
Estimated Origin
Mid-Meiji era (glassmakers from Nagasaki and Osaka); post-war recycled-glass tradition from the late 1940s–1950s
Cultural Function
Everyday tableware; souvenirs; originally lamp chimneys and storage jars
Primary Materials
Recycled bottle glass (cullet) — about 30% of current output — and raw glass batch
Primary Tools
Glass furnace; blowpipe; molds (for katabuki)
Process Overview
Collect and wash bottles -> crush -> melt -> gather -> free-blow or mold-blow -> anneal
Traditional Applications
Lamp chimneys; storage jars; tableware
Contemporary Applications
Tableware, vases, souvenirs, art glass
Notable Practitioners
Inamine Seikichi (稲嶺盛吉, d. September 2023) — originator of awa-garasu; first Okinawan glassblower named a Contemporary Master Craftsman (1994). Tōbaru Masao (桃原正男) — master at Okuhara Glass; Contemporary Master Craftsman 2001. Uehara Tokuzō (上原徳三) — glassblower at Ryukyu Glass Village; Contemporary Master Craftsman 2019; Uezato Yukiharu (上里幸春) — factory head at Okuhara Glass, prefectural craftsman (2005); Inamine Seiichirō (稲嶺盛一郎) — trained at Okuhara from 1987, head of Niji since 2020
Key References
Nakagawa Masashichi Shōten, 'Ryūkyū garasu to wa' (story.nakagawa-masashichi.jp/craft_post/116000); Okinawa Times and QAB obituaries of Inamine Seikichi (Sept. 2023); Ryukyu Glass Village, 'Uehara Tokuzō'; Okinawa Times, 'Chūbuki shokunin ra gendai no meikō ni'; Orion Beer, '沖縄最古の琉球ガラス工房「奥原硝子製造所」の作品にかける思い' (2021); Ryukyu Mingei Center, '宙吹ガラス工房 虹'
Verification Status
Verified — history and masters; technique detail at summary level

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