1. In large pot or stockpot, add 7 cups water and all ingredients. Bring to a boil, uncovered.
2. Reduce heat, and simmer, partially covered, until flavor develops, about 45 minutes.
3. Strain, pushing vegetables against strainer to extract as much liquid as possible. Cool. Store in glass jars, and refrigerate for up to 3 days or freeze for up to 4 months.