After 15 Years, the Fosters Freeze Franchise is Ready to Expand Posted byStephanie Schomer March 16, 2021 Leave a comment on After 15 Years, the Fosters Freeze Franchise is Ready to Expand Fosters Freeze is a beloved California ice cream franchise with more than 70 years of history, 65 locations – and no store growth in 15 years. But that’s about to change.