Can a jelly recipe be doubled?

Can I double a recipe for pepper jelly? I have a basic jalapeno pepper jelly recipe: jalapenos, bell peppers, apple cider vinegar, sugar, liquid pectin. It makes 7-8 cups per recipe. Since I'm starting to sell these at a local farmers market, I'd like to make about double that at one time. I do have pots & a canner that will hold that many half pint jars. I'm just wondering if it would be OK to double the ingredients without any problems.
Jo-Ann


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After I posted this, I did a quick goole on "doubling canning recipes" and got a lot of answers. In a word: NO. The best explanation I got was here"

http://www.foodinjars.com/2011/01/canning-101-why-you-shouldnt-double-batches-of-jam/

This message was edited Jun 11, 2012 5:24 AM