Ever wondered what those portable kegs, often called “Corny kegs,” are really made of? The answer to “What Are Corny Kegs Made Of” isn’t as simple as “metal” or “plastic.” There’s a specific material that gives them their durability and suitability for storing and dispensing your favorite homebrews and other beverages. Let’s dive into the details.
The Stainless Steel Story Behind Corny Kegs
The primary material that forms the body of a Corny keg is stainless steel. The use of stainless steel is paramount to the keg’s functionality and longevity because it’s resistant to corrosion and doesn’t impart any unwanted flavors into the beverage stored inside. It’s a food-grade material, meaning it’s safe for prolonged contact with liquids intended for consumption. Different grades of stainless steel can be used, but generally, you’ll find them made from types that are particularly resistant to acids and cleaning chemicals commonly used in brewing.
However, it’s more than just stainless steel! Consider these other vital components often found in a Corny keg:
- Rubber or Silicone: For gaskets and O-rings, ensuring a tight seal.
- Plastic (usually Polypropylene): For dip tubes that draw the liquid from the bottom.
- Metal (Stainless Steel): For posts, poppets, and other internal hardware.
These components ensure proper operation, sealing and drawing of the beverages from the keg. Below is a table showing common parts that use Stainless Steel as the primary material.
| Part Name | Material |
|---|---|
| Keg Body | Stainless Steel |
| Posts | Stainless Steel |
| Poppets | Stainless Steel |
The construction of a Corny keg involves welding the stainless steel sheets together to form a cylindrical body. The top and bottom are then formed and welded to the body. This creates a robust, pressure-resistant container designed to withstand the carbonation process. They are designed for repeated use and are easily cleaned, making them an ideal choice for homebrewers and beverage enthusiasts. The sturdy construction allows them to be sanitized effectively, preventing contamination of the liquids inside. The stainless steel is typically finished to a smooth surface, which further helps with cleaning and sanitization.
To learn more about the specific grades of stainless steel used and the different components involved in Corny keg construction, consult the resources from reputable homebrewing suppliers.