The area at the top of a vessel (fermenter, bottle, or keg) which does not contain any liquid In general, the goal is to minimize headspace, to prevent oxidation of the beer by oxygen in the air Headspace in the primary fermenter is not a serious concern, because the CO2 produced by fermentation forms a protective blanket on top of the beer, and forces nearly all of the oxygen out of the fermenter The headspace in a bottle is also sometimes referred to as ullage
This is the empty space between the top of the beer and the top of the bottle after capping Note: an excessively large headspace means someone has been drinking the beer
head space
Türkische aussprache
hed speys
Aussprache
/ˈhed ˈspās/ /ˈhɛd ˈspeɪs/
Etymologie
[ 'hed ] (noun.) before 12th century. Middle English hed, from Old English hEafod; akin to Old High German houbit head, Latin caput.