How do you cool a beer tower?

Answered by James Porterfield

As an expert sommelier and brewer, I have had plenty of experience cooling towers, and I'm excited to share my knowledge with you. Cooling a beer tower is essential to ensure that your beer stays cold and refreshing as it is poured. One effective method to achieve this is by filling the draft tower with spray foam insulation. Here's how you can do it:

1. Prepare the draft tower: Before you begin, make sure the draft tower is clean and free from any debris or dust. This will ensure that the insulation adheres properly and creates an airtight seal. You can use a cloth or brush to remove any dirt or residue.

2. Choose the right spray foam insulation: There are various types of spray foam insulation available in the market. Look for one that is specifically designed for insulation purposes and suitable for use in the food and industry. It should be safe and non-toxic.

3. Get the right equipment: To apply the spray foam insulation, you'll need a canister of the foam insulation and a spray nozzle. Make sure the nozzle is compatible with the canister, and it provides a controlled spray.

4. Start the application process: Shake the canister of spray foam insulation well to ensure the contents are mixed thoroughly. Then, attach the spray nozzle securely. Hold the canister upside down, and depress the trigger of the spray foam can in short bursts. This will allow you to control the amount of foam being dispensed.

5. Apply the spray foam slowly: Begin by inserting the spray nozzle into the draft tower, ensuring it reaches the bottom. Slowly spray the foam insulation, starting from the bottom and working your way up. Be cautious not to spray too much foam at once, as it expands rapidly. It's better to apply it in layers to avoid overfilling the tower.

6. Allow the foam to expand: After applying the initial layer of foam, give it some time to expand and fill the gaps within the draft tower. This usually takes around 15-20 minutes, but it's essential to follow the instructions provided by the manufacturer of the spray foam insulation for precise timing.

7. Continue layering if needed: Depending on the size of your draft tower and the amount of insulation required, you may need to apply multiple layers of spray foam. Repeat the process of spraying slowly and allowing the foam to expand until the draft tower is adequately filled.

8. Trim excess foam: Once the foam has fully expanded and hardened, you can trim any excess foam that may have overflowed from the top of the draft tower. A sharp utility knife or a foam cutter can be used for this purpose. Be careful not to damage the tower or any internal components while trimming.

By following these steps, you can effectively insulate your draft tower and maintain the desired temperature of your beer. The spray foam insulation creates an excellent barrier to prevent heat transfer, keeping your beer cold and refreshing for longer periods.

A few tips to keep in mind:

– Always read and follow the instructions provided by the manufacturer of the spray foam insulation.
– Work in a well-ventilated area to avoid inhaling fumes from the insulation.
– Wear appropriate safety gear, such as gloves and goggles, while applying the spray foam.
– Take your time and be patient during the application process to ensure a proper seal.
– Regularly check the draft tower for any signs of damage or wear and tear, and reapply insulation if needed.

I hope these detailed instructions help you cool your beer tower effectively. Cheers to enjoying perfectly chilled beer from your draft system!