Free-blown

Free-blown tablewares and bottles were found in substantial numbers at ʿEin Boqeq, the village of ʿEin Gedi, Masada, Jericho, Machaerus, 'Ein ez-Zara, and even in the cell structures at 'Ein Gedi. It seems that free-blown glass was a common possession in the Dead Sea region, and the Qumranites possessed such wares like everyone else.

Source: wiktionary

Multiple copies of identical glass vessels with surfaces quite distinct from those on contemporary free-blown or moulded glass were produced and the vessels became a significant, though minor, part of the glass tablewares in circulation for about a half a century thereafter.

Source: wiktionary

Roman glass occurs in both mould-blown and free-blown forms, this providing an opportunity to consider particular production methods in relation to user experience.

Source: wiktionary