Best way to fill a growler....... according to ChatGPT

I am brewing another artichoke beer for my buddy and I was thinking about ways to fill a uKeg growler without exposing the beer to too much oxygen. So I decided to ask Chat GPT!

Artichoke Pilsner Recipe

Here's what it said:

What is the best way to fill a growler from a keg without exposing the beer to too much oxygen?

ChatGPT

When filling a growler from a keg, minimizing oxygen exposure is crucial to maintain the freshness and quality of the beer. Here are some steps to help minimize oxygen contact during the filling process:

Prepare and clean the growler: Ensure that your growler is clean and sanitized before filling. Any contaminants or residues could negatively impact the beer's flavor and stability.

Use a counter-pressure filler: A counter-pressure filler is a device that helps maintain pressure within the growler while filling, reducing the contact between beer and oxygen. It works by pressurizing the growler with carbon dioxide (CO2) before filling, creating a balanced pressure environment. This is typically the most effective method for filling growlers with minimal oxygen exposure.

Purge the growler: Before filling, purge the growler with CO2 to remove any oxygen that might be present. This can be done by flushing the growler with CO2 a few times and then sealing it to maintain the CO2 blanket.

Connect the growler filler: Attach the counter-pressure filler to the tap on the keg, making sure it creates a tight seal. The CO2 line of the filler should be connected to the growler, maintaining pressure inside the vessel.

Begin filling: Open the tap on the keg, allowing beer to flow into the growler. Simultaneously, the CO2 pressure inside the growler should be maintained, equalizing the pressure and minimizing oxygen contact.

Fill to the appropriate level: Fill the growler to a level that leaves minimal headspace but still allows for proper sealing without beer overflow. The goal is to minimize the amount of oxygen trapped in the growler.

Cap and seal immediately: Once the desired amount of beer is filled, cap the growler immediately using an airtight seal. Ensure the cap is securely fastened to prevent any oxygen from entering.

By following these steps and utilizing a counter-pressure filler, you can significantly reduce the exposure of the beer to oxygen, helping to preserve its taste and quality for a longer period.

Wow impressive! I may add a ChatGPT post occasionally to see what kind of information brewers can pull from this amazing (and scary) resource.

Interestingly enough, the Growler works guys seem less concerned about purging the growler first.

Finally, here is a commercial product for breweries and brew pubs that seems to do a great job removing all O2. These are the guys from Genus Brewing near Spokane...