A production process used for glass container manufacturing with forming machines. The elongated gob of molten glass formed by the gob feeder falls into the inverted parison (blank) mould. It is blown down into the mould (settle blow) before being blown from below (counter blow) back up into the now closed mould. The inverted parison is transferred to an upright position in the blow mould where it is reheated before compressed air is introduced into the parison bubble. During blowing, a vacuum is applied through the mould to suck any trapped air or other gases from the bottom of the mould. A takeout mechanism then lifts the container from the mould.
Blow-and-blow Process 
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