Weck jar secured by steel tension clips which can be removed once a vacuum seal has formed. During storage the vertical position of the rubber seal's external tongue indicates the status of the sealing. Weck products are still produced and are available from German hardware and online stores. Used equipment is frequently sold on online auction sites and in opportunity shops. Weck jar A Weck jar is a molded glass jar used in canning to preserve food. It is popularly used for jam preservation, for its minimal look and foolproof rubber gasket with a glass lid. Weck jars were created by the
Camp Ralph S. Mason program. The camp is dedicated to bringing every child they can to camp, regardless of financial need. Annually, Camp Mason provides more than $100,000 in financial assistance to campers. Camp Ralph S. Mason YMCA Camp Mason is a YMCA summer camp located in Hardwick Township, New Jersey. The 650 acre site is located next to the Delaware Water Gap National Recreation Area. Camp Mason annually serves approximately 800 campers in its summer camp programs, and 7,000 participants at its outdoor center. Established in 1900 as YMCA Camp Washington, YMCA Camp Mason was founded by the Trenton/Mercer YMCA. A small group