When canning tomatoes, begin with high-quality tomatoes and always add acid to your tomatoes before processing. Follow the directions below for canning whole or halved tomatoes and tomato juice. For ...

Dry with paper towels. Use paper to turn off the water faucet. Note: Do not increase the amount of pepper, onion, or celery. Doing so will alter the acidity level and make it unsafe for canning.

Harrison Woodhull Crosby, the chief gardener at Lafayette College in Pennsylvania, is considered the pioneer, having ...