WHAT SHOULD YOU LOOK FOR IN A BUNG?

Durability, Design, and Manufacturing processes are important aspects to consider when choosing silicone rubber bungs. All bungs are subject to the effects of repeated contact with sulphur dioxide over time. Boswell bungs are engineered to last.

Bung durability is directly proportionate to the quality level of the raw material used before milling. Among FDA approved ratings, there are many available grades of silicone rubber for different applications; the higher the quality, the more durable the bung. Boswell bungs are made from the highest quality material approved for food handling.

Bungs should be designed to seal the tapered bunghole completely from top to bottom. The bottom of the bung should not project into the wine. Bungs that fit correctly are less
susceptible to deterioration. Ergonomic domed tops are easy to handle in the
cellar. The dome also minimizes liquid accumulation. Date stamping on bungs
allows you to track longevity. Boswell bungs are designed with all these
requirements in mind.

Manufacturing processes are crucial to create the best performing bung.
The higher the density of the silicone rubber part, the more resistance to degradation over time. Specific curing processes produce the necessary density. The inner metallic surfaces of the bung mold must be carefully maintained to produce a desirable finished product. Boswell bungs are manufactured in a controlled environment using impeccable curing methods and superior bung molds.

Since 1981, The Boswell Company has worked hard to supply barrel bungs to winemakers around the world, and our commitment to quality and service remains the same today.