Pierce the tomatoes with a fork and place them in sterilized glass jars. Fill the jars with the tomato puree.
To seal, immerse the jars in boiling water in a pan to create a vacuum. Store in a cool, dry place.
Ensuring a tight seal and vacuum is crucial for extending the tomatoes’ shelf life. With this method, you’ll always have homemade preservatives at your fingertips, ready to elevate any dish, from a quick spaghetti to flavorful seasonings!
