Sofia Martinez
Depressurizing a plastic keg is a simple process, but it requires careful maneuvering and the right tools. It is important to depressurize a keg before or after use, especially if you don't have a tap to pour out the beverage. Depressurizing is also necessary if you want to reuse the keg later. The process involves locating the ball pin at the center of the keg's top, pressing down on it to release pressure, and then using tools like a flathead screwdriver and pliers to detach the retaining ring and remove the inner tube. It is recommended to perform this task outdoors to avoid any mess from the beer that may spurt out.
| Characteristics | Values |
|---|---|
| When to depressurize | Before or after use, especially if you don't have a tap to get out the beer |
| Tools required | Flathead screwdriver, pliers, hammer |
| Location | Outside, on a surface that can be easily cleaned |
| Keg position | Upright, with the ball pin at the top |
| Ball pin | Press down on the ball pin to depressurize |
| Keg couplers | Should have a pressure relief valve |
| Full kegs | Require two people to handle the weight |
| Clothing | Wear old clothes that can get dirty |
| Body position | Lean away from the keg |
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Locate the ball pin
To locate the ball pin, start by looking at the top of the keg. At the centre of the keg, there should be a rounded, circular metal pin stuck in the opening of the keg. This is the ball pin, and pressing down on it will help to depressurize the keg.
The ball pin is usually surrounded by a retaining ring, a small metallic ring that can be pried up with a flathead screwdriver. Once the ring is loosened, it can be pulled off with a pair of pliers. Underneath the ring and the ball pin, there should be a tube that can be removed with a hammer.
If you are having trouble locating the ball pin, it may be helpful to know that there are two main types of kegs: ball lock and pin lock. Ball lock kegs use a ring of ball bearings to secure the gas and liquid connections, while pin lock kegs use pins on the keg fittings to secure the gas and liquid line fittings. Pin lock kegs have two pins for "gas-in" and three pins for "liquid-out", and they are shorter and wider than ball lock kegs, which are taller and skinnier.
If you are still unsure whether your keg is a ball lock or pin lock, it may be helpful to know that Pepsi used to use ball lock kegs, while Coke used pin lock "corny" kegs. As a result, most homebrewers used to use Pepsi's ball lock kegs, and most new kegs are ball lock.
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Use a screwdriver
To depressurize a plastic keg using a screwdriver, you will need to locate the pressure relief valve, which is usually found on the top or side of the keg. This valve is responsible for maintaining the pressure inside the keg and releasing pressure when necessary. Here's a step-by-step guide on how to do it:
Firstly, ensure that you have the correct type of screwdriver for the job. The screws on the pressure relief valve are usually standard cross-head screws, so a Phillips-head screwdriver should do the trick. Once you have the right tool, locate the pressure relief valve, which is typically covered by a small plastic cap. Remove this cap carefully; you may need to use the screwdriver to pry it open gently.
With the cap removed, you should see the pressure valve mechanism. This usually consists of a small cylinder with a spring and a piston inside. The piston has a seal that keeps the gas from escaping. Gently insert the screwdriver into the mechanism and apply slight pressure. You are not trying to force or turn anything at this stage, just gently depressing the piston. This action will start to release the pressure, so be cautious and keep your face and body clear of the valve.
If the pressure is not releasing, try turning the screwdriver slightly in a clockwise direction. This action may help to loosen the piston and allow the gas to escape. Keep applying gentle pressure and turning the screwdriver until you hear the gas start to escape. Once the gas is releasing, maintain gentle pressure on the screwdriver to ensure the gas continues to escape. You may need to keep the screwdriver in place for a few seconds to ensure all the pressure is released.
Finally, once the pressure has been fully released, carefully remove the screwdriver from the valve. Reattach the plastic cap to the pressure relief valve to keep it clean and secure. Your keg should now be safely depressurized, and you can continue with any necessary refilling or maintenance tasks. Remember always to exercise caution when working with pressurized containers and follow all safety guidelines provided by the manufacturer.
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Wear old clothes
When depressurizing a plastic keg, it is important to take precautions to avoid any potential mess or damage to your clothing. One essential step is to wear old clothes that you don't mind getting dirty or stained. This is a critical step because depressurizing a keg can be a messy process, and you want to ensure that you are comfortable and protected during the task.
By donning old attire, you reduce the risk of ruining your favorite outfit or feeling constrained by nice garments. Old apparel provides a sense of freedom and ease, knowing that any spills or splashes won't cause permanent harm. It also ensures that you won't be distracted by trying to protect your clothes, allowing you to focus entirely on the task at hand.
Choose something that covers your body fully, like a long-sleeved shirt and full-length pants. This will reduce the exposed skin area and provide an extra layer of protection. Additionally, consider wearing an apron or a smock specifically designated for messy tasks. This extra layer will act as a barrier, catching any stray sprays or drips and further minimizing the mess.
Also, pay attention to the footwear you choose. Opt for closed-toe shoes that offer good traction and protection. This will safeguard your feet from any falling objects or spills and provide a stable base while you work. It is also advisable to wear gloves, especially if you are sensitive to chemicals or have sensitive skin. Rubber gloves can provide an additional layer of protection and make clean-up easier.
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Ask for help
Depressurizing a keg can be a challenging task to do alone, so asking for help is a good idea. If you are unsure about any part of the process, it is always best to seek advice from someone with experience. This could be a friend who has depressurized a keg before or a local craft beer bar or brewery. They may be able to lend you the tools you need, such as a keg coupler, or even help you with the process.
If you are attempting to depressurize a full keg, it is especially important to ask for help as they can be heavy and difficult to move. Having someone assist you with moving the keg will make the process much easier and safer. It is also important to wear old clothes that you do not mind getting dirty, as beer will likely spurt out during the process.
When asking for help, it is a good idea to provide as much information as possible about the keg, such as the type of keg and the pressure it is at. This will allow your helper to give you the most accurate advice or assistance. It is also important to follow safety precautions when depressurizing a keg, so if you are unsure about anything, it is always better to ask for clarification.
Additionally, if you do not have the right tools for the job, such as a flathead screwdriver or pliers, asking to borrow them from a friend or a local bar or brewery can be a great solution. They may also have other tools that you had not considered, which could make the process easier and safer.
Overall, asking for help when depressurizing a keg can make the task safer, easier, and more efficient. It can also provide an opportunity to learn from someone with experience and ensure that you are following the best practices for depressurizing a keg.
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Use a drill
If you have access to a drill, you can quickly depressurize your plastic keg. Here's a step-by-step guide:
Begin by assembling the necessary equipment: a drill with a sharp bit, preferably a drill bit designed for metal, safety goggles, and work gloves. Place the keg in a secure location, preferably outside or in a well-ventilated area, as the released gas may be pressurized and contain beverage residue. Put on your safety gear, including eye protection and gloves, to avoid any potential hazards from drilling and the release of gas or liquid.
Now, locate the pressure release valve on the keg. This is usually a small circular area on the top or side of the keg, often marked or slightly indented. You will drill into this area to release the pressure. Select an appropriate drill bit that is slightly narrower than the valve area to avoid damaging the surrounding keg material. Carefully position the drill bit onto the valve area and begin drilling slowly and with moderate pressure.
As you drill, you should feel the drill bit penetrate the valve, and you will likely hear a hissing sound as the gas escapes. Continue drilling until you have completely penetrated the valve and the gas has stopped escaping. Once the pressure is released, stop drilling, and carefully remove the drill bit from the now-depressurized keg. It is important to maintain control of the drill during this process to avoid damaging the keg or causing injury.
By following these steps and using a drill, you can quickly and effectively depressurize your plastic keg. Remember to prioritize safety and take the necessary precautions to protect yourself and your surroundings.
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Frequently asked questions
If your keg is full, it is likely pressurised. If you are unsure, check the top of the keg for a rounded, circular metal pin. This is the ball pin, and if it is there, your keg is pressurised.
First, put on some old clothes as the process can be messy. Bring your keg outside and lay it on its side. Then, press down on the ball pin to release the pressure. If you do not have a tap, you will need a flathead screwdriver and some pliers. Use the screwdriver to pry the retaining ring upwards, then use the pliers to pull the ring off the keg.
If you do not have a tap or the right screwdriver and pliers, you can try some of the following methods: drill a small hole in the top of the keg, use a grinder, use a 3-jaw puller, or attach a coupler with no gas line in.
