For use with hot-fill product. These caps have an acid-resistant liner that is ideal for tomato-based recipes and other acidic foods. When used with hot-fill products, the liner in Safety Button Caps draws a vacuum on any lug-finish jar. The center "button" is released once the jar is opened and the vacuum is released.
Priced as low as $0.12 each when purchased in bulk quantities (See product options below).
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