Found a great source for food preserving info at www.faqs.org, very pleased with my dried tomatoes! Paraphrased notes from the site: The best tomato to use for dehydrating is the Roma tomato because it contains less water and seeds. You can use any tomatoes but they may take a little longer to dry. All drying times below are approximate. It takes about 7-8 pounds of tomatoes to yield about a pint of dried tomatoes. Herbs are optional, you may prefer pain tomatoes for greater cooking versatility. After the tomatoes are dry, store in air-tight containers, or pack in oil.