Heinz Apple Cider Vinegar. #1 National brand. Estd 1869. The all natural choice for food. 5% acidity. Heinz® all natural apple cider vinegar is always: Sourced from all natural apples. Ultra-filtered to guarantee sparkling clarity. Diluted to 5% acidity and bottled at peak freshness. Naturally good since 1869. Questions/Comments Call 1-800-255-5750 or visit us at: www.heinz.com. For more information visit www.heinzvinegar.com.