So what is an heirloom tomato, anyway? According to The Seedsavers Exchange in Decorah, Iowa, an heirloom seed is one that has been passed down from one family to the next for many generations. In my experience, heirloom tomato varieties are selected more for their flavor than their looks. Grocery store tomatoes often look nice, but are lacking in that mouthwatering flavor of an heirloom tomato. Learn more about the Seedsavers Exchange How to save tomato seeds My Top 5 Favorite Heirloom Tomatoes: Click on the variety link for additional information and photos of each variety. If you’re still not quite sure which varieties to try, you can attend an heirloom tomato tasting event in Decorah, Iowa at The Seed Savers Exchange and taste from a selection of hundreds of heirloom tomato varieties. Heirloom Tomato Tasting and Seed Saving Workshop: August 31, 2013 My picks: Kellogg’s Breakfast: This is one of the strangest, largest tomatoes I have ever seen. The flavor is out of this world, if you are lucky enough to harvest one before …