growler | Definition

Doc's Brewing Glossary by Adam McKee

A growler is a reusable container used to transport draft beer from a brewery or taproom.

Understanding Growlers

Growlers are airtight containers designed to keep draft beer fresh and carbonated while transporting it from a brewery or taproom to another location for consumption. They come in various sizes, with the most common being 32 ounces (1 quart) and 64 ounces (half-gallon). Growlers have become increasingly popular among craft beer enthusiasts as they offer a convenient way to enjoy fresh, draft beer at home or on the go.

History of Growlers

The term “growler” dates back to the late 19th century when beer was transported in metal pails. As the carbon dioxide escaped through the lid, it created a rumbling sound, resembling a growl. The name “growler” stuck, and the term evolved to refer to any container used to transport draft beer.

Types of Growlers

  • Glass Growlers: Traditional glass growlers are often amber-colored to protect the beer from light damage. They are relatively inexpensive and readily available but can be heavy and fragile.

  • Stainless Steel Growlers: Stainless steel growlers are durable, lightweight, and keep beer cold for extended periods. They are more expensive than glass growlers but offer superior insulation and protection from light.

  • Ceramic Growlers: Ceramic growlers are less common but offer excellent insulation and a unique aesthetic appeal. They are typically heavier and more fragile than stainless steel growlers.

Growler Features

  • Airtight Seal: A tight seal is crucial for maintaining the freshness and carbonation of the beer. Growlers typically have screw-on caps, swing-top lids, or other sealing mechanisms to prevent air from entering.

  • Handles: Many growlers have handles to facilitate carrying and pouring.

  • Insulation: Some growlers, particularly stainless steel and ceramic ones, feature insulation to keep the beer cold for longer periods.

  • CO2 Cartridge System (Optional): Certain growlers come with a CO2 cartridge system that allows you to maintain carbonation levels for extended storage.

Filling and Caring for Growlers

  • Filling: Growlers are typically filled at breweries or taprooms using a counter-pressure filler, which minimizes oxygen pickup and preserves carbonation.

  • Cleaning: After each use, growlers should be thoroughly cleaned with hot water and a mild detergent. Avoid using bleach or harsh chemicals, which can damage the growler and leave behind residues that can affect the flavor of the beer.

  • Storage: Store empty growlers with the lid off to allow them to air out completely. Store filled growlers in a cool, dark place to preserve freshness and avoid light damage.

Growler Laws and Regulations

It’s important to be aware of local laws and regulations regarding growler filling and transportation. Some states have specific requirements for growler labeling, filling procedures, and alcohol content limits.

Conclusion

Growlers are a convenient and eco-friendly way to enjoy fresh, draft beer at home or on the go. With various materials and features available, you can choose a growler that suits your needs and preferences. By properly filling, cleaning, and storing your growler, you can ensure that your beer stays fresh and delicious for as long as possible.

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