For that reason you need to put your National Drug Code (NDC) into a Universal Product Code (UPC) barcode in the United States. A UPC-A barcode symbol contains a GS1 GTIN-12 data structure. Here is what you need to do to convert your NDC into a GS1 GTIN-12:
How to Harvest Cilantro. 1  Cilantro leaves can be cut at any time during their growth period, but waiting until the plant is about 6 inches tall will give you optimum leaves.  Cut the outer leaves first, allowing the smaller leaves that are closer to the stalk to continue to grow and mature.
1 Although it is usually just the leaves of the fresh cilantro plant that are used, the stems and roots are edible as well. 2  As soon as you arrive home with fresh cilantro, place the stems (with roots intact if attached) in a glass of water and cover the the top loosely with a plastic bag. 3  Refrigerate.reezing cilantro. To freeze, you can either place a small amount of dry cilantro leaves in a single layer on a cookie sheet. When frozen, gather into a zip-top bag, returning to the freezer immediately. Use within 6 months. Or you can simply freeze into zip locks like you would dill. Do not thaw before using.