Homemade sauce can be canned (here's advice from the folks at Ball Jars on that). Make sure to follow canning instructions carefully to safely preserve your sauce. Use a glass jar with a new metal pop-up lid. If it's properly sealed, you'll be able to see a vacuum effect pull down the lid, and as it cools, the lid will pop. You can also freeze the sauce in freezer-safe resealable plastic containers for up to 3 months, though this sauce is best when freshly made!