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To freeze tamales, place uncooked tamales or cooled steamed tamales in large resealable freezer-weight plastic bags. Freeze up to 6 months. To reheat, thaw frozen tamales in refrigerator overnight. Steam uncooked tamales 1 hour. Steam cooked tamales 20 to 30 minutes or until heated through.
Substitution Tip: Use 8 pounds (14 cups) prepared masa (found in Mexican grocery stores) instead of preparing masa.