According to Canadian food and drug regulation (CRC), jam and jam products must at least have 45% of the named fruit and 66% of water-soluble solids. In addition, it may contain added pectin, pectinous preparation, or acid ingredient. Also, reasonable amount of a Class II preservative, a pH adjusting agent, and an antifoaming agent is acceptable. However, the jam product shall not contain apple or rhubarb.