Most products that are certified organic by the U.S. Department of Agriculture – such as baby food, meat, produce and other items – enjoy a hefty upcharge that consumers are willing to pay. “The most valuable certification on the planet Earth is organic, particularly as it pertains to consumer-packaged goods,” said Ben Gelt, an adviser to the cannabis practice at law firm Greenspoon Marder and board chair for the Denver-based Cannabis Certification Council, a nonprofit…