How do I activate Freeze Boost and what does it do?

Activate Freeze Boost by pressing the Freeze Boost button on the control display prior to grocery shopping to lower the freezer temperature and freeze food faster. Freeze Boost will remain active for up to 24 hours before automatically deactivating, or it can be manually turned off by pressing Freeze Boost again, which resets the freezer to the previous temperature setting. (Pages 20, 23)