National Center for Home Food Preservation — Also “Preserving Food at Home: A Self-Study” course.

Master Food Preserver Program, University of Maine Cooperative Extension

• Let’s Preserve — Series of 13 fact sheets (2 to 6 pages each) on canning and freezing fruits and vegetables, with recipes.

Canning & Freezing Quick-Guides — 2-page bulletins listing basic preparation steps, times, jar sizes, etc. for canning and freezing commonly preserved vegetables and fruits.

Canning FAQs, Canning Across America

Vegetable Planting Guide and Recommended Planting Dates

Approximate Yields for Canned or Frozen Fruits and Vegetables

Fillmore Container — wholesale glass jars by the case