I'm sure Mama Leone fed her family without the benefit of calcium chloride. Small choices such as these are a step in the right direction. Environment action takes many forms. When you decide to boycott a product because of excessive packaging, you need to write the company who produces it and let them know what you are doing and why. I know you can't grow your own wheat, but you can buy organically grown flour, in bulk, from your local health food market.
Most grain products are available without packaging, including pasta and rice.
Other action that will make a big difference is becoming involved in municipal government. I recently went through the committee appointment process for the City of Encinitas. I was the lone voice in a wilderness of development interests. Architects, engineers, planners and realtors all wanting to help shape future growth. Voting is also important.