The University of California Davis does a great job of explaining safe methods for home canning that reduces or eliminates the chance of Botulism. Check out their PDF: “Olives: Safe Methods for Home Pickling.”
Penna Olives are the world’s best olives for many reasons. Not only are they grown, processed and packed right at M&CP Farms in Northern California, but the Pennas incorporate old processes improved upon and made safe by modern microbiology. Customers can count on Penna Olives’ consistency and quality since M&CP Farms is the only end-to-end handler— from the tree to the package.