Blown Glass Pickling Jar

Blown glass is a technique used to create glass objects by inflating a blob of molten glass using a blowpipe. The process involves heating glass to a high temperature until it becomes molten and pliable, and then shaping it by blowing air into it through a tube called a blowpipe. The glass can be shaped into a variety of forms, such as vessels, bowls, and sculptures.

Blown glass has a long history, dating back to ancient Roman times, and has been used for a wide variety of purposes throughout history, from functional vessels for holding liquids, to decorative objects of art. 

Blown glass objects are created by skilled glassblowers who use a variety of tools and techniques to shape the glass. The process can be complex and time-consuming, as it involves multiple steps, such as gathering molten glass on the end of the blowpipe, shaping the glass with tools, reheating the glass to maintain its pliability, and adding color or other decorative elements.