Rita McCabe, owner and CEO of Sub Zero Nitrogen Ice Cream and Catering in Nashua, demonstrates the use of nitrogen to make ice cream. COURTESY PHOTO

Rita McCabe, owner and CEO of Sub Zero Nitrogen Ice Cream and Catering in Nashua, demonstrates the use of nitrogen to make ice cream. COURTESY PHOTO—

Killian Handy of Jaffrey won one of the two grand prizes – a bicyle donated by the Charity Lodge of Jaffrey. Earl Cole, left, and Dave Sroka, right, of the Charity Lodge, present the bike to Killian Thursday. COURTESY PHOTO

Earl Cole, left, and Dave Sroka, right, representing the Charity Lodge in Jaffrey, present Addy Norby of Jaffrey with a bicycle donated by the lodge as a Summer Reading Program grand prize. COURTESY PHOTO