Safety of Vintage Canning Recipes It’s very common to find old canning recipes tucked into family collections or in vintage fundraising cookbooks. However, these vintage canning recipes may contain safety concerns. With modern cooking, we know more about what makes canning safe, but those who are inexperienced in the kitchen may not know the safety concerns. Let’s look at some considerations before putting vintage canning recipes in your cookbook. Old Versus New Recipes Vintage recipes contain ingredients that have changed over time and may now be store-bought instead of home-grown.  One example is that today’s tomatoes do not have the