Glassblowing is a glassforming technique that involves inflating molten
glass into a bubble (or parison), with the aid of a
blowpipe (or blow tube). A person who blows glass is called a
glassblower,
glassmith, or
gaffer. A
lampworker manipulates glass with the use of a torch on a smaller scale, such as in producing precision laboratory glassware out of
borosilicate glass.