艾伯森并没有马上售卖自己粗心大意得来的发明，直到18年后，他为家乡旧金山的一场消防员舞会准备了这种自创的冰品。
Epperson didn 't start selling his accidental invention until 18 years later when he prepared his frozen treat for a fireman 's ball in his hometown of San Francisco .
消防员舞会