hi i am looking for a refrence to learn how to use food additives and preservatives i want to sell sauces with a longer shelf life know of a book?

Hi there! It's great to hear that you're interested in learning more about food additives and preservatives to extend the shelf life of your sauces. I've written two articles that might be helpful for you in understanding the different types of additives and preservatives and their applications:

The Ultimate Guide to Understanding Food Additives: https://reiheychem.com/the-ultimate-guide-to-understanding-food-additives/
Preservative: Preserving Our Food and Health: https://reiheychem.com/preservative-preserving-our-food-and-health/
These articles provide a comprehensive overview of food additives and preservatives and should serve as a good starting point for your research. Good luck with your sauce business!

Moshe - You will need to do a few things to determine this. Different countries, and even sometimes states (if US) have rules and restrictions on the preservatives and additives you can use in food based items.

Determining where you want to sell, I would recommend looking into those laws surrounding food preserving.

Not knowing the kinds of sauces you are looking to preserve longer, I am hesitant to provide more information on the topic. Some products can store for years with natural canning and pasteurization, while others will require increased salt or oils, and in other cases, oxygen reduction and nitrogen supplementation.