The Top Innovated Thing You Can Do With A Leftover Beer Keg

What Can I Do With A Leftover Beer Keg?

Isn’t it fun to party with friends and have an ample supply of keg beer? Imagine spending the weekend partying and drinking so much beer but still having leftovers.

Of course, you don’t want to throw out the leftover keg beer, so you’re probably thinking of ways to reuse it.

What can I do with a leftover beer keg? The best thing you can do with leftover keg beer is to put it into a growler. Leftover beer can be used for cooking, cleaning the house, and much more.

Leftover keg beer is no fun, as there is no assurance that it will taste the same. This article will teach you how to store it in a growler, or if not, cook with it.

Put It in a Growler

Growlers are containers used to carry and store beer poured from a keg through a tap system.

They are made of glass, stainless steel, or ceramic materials that help conserve beer for a period with reduced deterioration. The preservation period can range from a few days to a few weeks based on the features available.

Preservation length is also calculated based on your retailer’s capacity to vacuum your CO2 grower before loading it with beer.

Growlers supply the drinker with a straight-from-the-tap drinking experience, which can be taken on the go. Growlers come in a range of shapes and sizes.

Best Growlers to Use for Leftover Keg Beer

Keg beer is becoming more and more popular. People also use kegs at parties to avoid stock shortages, but they have many leftovers as a result. The right growler can buy you time to use your remaining keg beer.

Vacuum Insulated Stainless Steel Beer Growler by DrinkTanks

This growler serves as a personal mini keg with the aid of DrinkTanks’ self-regulating keg hat.

All DrinkTank growlers are vacuum-insulated, meaning you can place hot or cold liquids in them and keep them hot or chilled.

GrowlerWerks Copper uKeg Carbonated Growler

The UKeg 128 pressurized grower is available in a bright copper-plated finish for a genuine, old-fashioned brewery look.

The UKeg 128 is a mini keg and carries a full gallon. It keeps beer cool, fresh and carbonated for two weeks.

This is great whether you are on the road or at home. It is made of durable, double-wall, vacuum-sealed stainless steel.

It also has a CO2 regulation cap with an adjustable tap handle and gauge, as well as a brass holding handle. It includes two 16-gram CO2 cylinders.

Step by Step Guide to Filling a Growler

Chill the Growler (optional)

Chill your grower for 15-20 minutes by putting it in the refrigerator. This is an ideal step if you are loading the growler at home with your kegerator.

Also, the best way to go directly to the brewery or shop is to top it up because it’s a short trip.

This would help reduce the amount of carbon dioxide released from the beer during the filling process.

A room-temperature growler is almost as good, and your beer’s consistency will not be greatly affected.

Don’t freeze your grower, though, as ice crystals will form within, release too much CO2, and produce foam.

Rinse the Growler

You can clean your growler after every use and rinse it quickly with cold water before filling it.

Cleaning will clear any dust that might have gathered during storage. It also calms the growler’s surface if you haven’t been able to chill it ahead of time.

Attach a Growler Filler Tube to the Faucet

It is not advised to put the growler under a draft faucet and fill it in the same way you would pour a pint. The best technique for filling a growler is to fill it with a growler filler tube from the bottom up.

This drastically decreases the amount of foam and restricts the sensitivity of beer to oxygen. This will cause your beer to remain fresher in the growler for longer. 

The tubing of the growler filler has a metal fitting that goes through the faucet. Be sure that you have a tube that suits your faucet.

Perlick sockets require a filler tube with a different size fitting. If you are unable to get a growler filler, a 1⁄2″ piece of vinyl tubing of 12-15″ in diameter would also fit.

Fill the Growler

When your filler tube is attached and inserted inside your growler, open the faucet to start filling it with beer.

Many growlers have a loading line engraved or written on them, so you know how high to fill them.

Some areas that fill the growlers will purge the oxygen from the bottle before filling it by blowing CO2 inside. This is known as counter-pressure filling. It helps to keep the beer carbonated longer.

Secure the Cap

Firmly lock the growler cap shortly after filling to hold as much carbonation within the beer as possible.

Commercial businesses will need to put a seal on the hat, depending on state and local regulations.

Wipe Down the Growler

Wipe the exterior of the growler to disinfect any alcohol that has been spilled. Before washing it, you can clean it off with cold water.

Forcing CO2 in Your Leftover Keg Beer

There are two major techniques for force carbonation of a homemade keg. All of them are somewhat similar, with the main difference being the amount of time it takes to carbonate.

What You Need

  • Gas cylinder full of CO2
  • Gas regulator
  • Proper keg post liquid and gas line fittings
  • Unpressurized, homebrew-filled keg
  • Kegerator


  • Mount a ball lock conversion kit for your current kegerator row. This is a simple technique.

    It helps you link the liquid and gas lines to your current kegs without losing connection to regular ball-bearing-type kegs.

    If the ball lock conversion kit has been mounted, you will need to ready the gas line for connection to the keg.

When carbonating, the reverse sends CO2 gas through the dip tube to rise into the beer. This would increase the surface area between the CO2 bubble and the beer for a more effective carbonation process.

  • Remove the gas socket from the gas line and set it aside in a secure position to ready the keg. Remove the black liquid socket from the liquid line and connect it to the gas line.

    The sockets are intended to be connected only to their respective posts so that you can direct gas through the liquid mail.

Once this is finished, slowly turn the gas cylinder to 5 PSI. Search for any leakage in the string, at the liquid post, or around the cover of the keg. In the next step, the strategies are different.

Force Carbonation Technique

Technique 1

This force-carbonation technique carbonates at a quicker pace. However, it is important to remember that this requires more work.

  • Connect the gas supply to the keg in the same way as in the first step. When the machine is attached, crank the gas supply up to 30 PSI.

  • Gently shake the keg to stir the beer inside. You can hear the sound of bubbling inside the keg right away. Agitating the keg further increases the region of interaction between CO2 and beer and facilitates quicker penetration of CO2 into the beer.

  • Continue to shake the keg for 20-30 minutes. Afterward, reduce the pressure to 20 PSI and allow the keg to carbonate for 2-3 days. Check the carbonation rate and relax!

Technique 2

This technique will utilize a lower degree of CO2 pressure and carbonate for a longer period.

  • With the gas line free of leakage, use the keg pressure relief valve to momentarily bleed any gas. This will guarantee that the gas will pass into the whole keg as it should.

    In addition to hearing the gas escape as it leaves the keg, you can listen to the bulb. This means that CO2 is flowing correctly through the gas cylinder, the regulator, and a gas pipe. Next would be through the dip tube and the beer.

  • When you have checked that the whole machine is operating well, change the regulator to increase the pressure to 20 PSI. Enable the keg to carbonate for 7-10 days, then check the carbonation levels.

  • Move and reconnect the gas and liquid sockets to their correct lines and lower the gas supply.

Things to Consider When Forcing Carbonation

Although the PSI levels listed in the above-explained carbonation methods are good guidelines, it is important to understand temperature.

Temperature plays a role in how the correct volume of CO2 can be obtained when carbonating. The lower the temperature, the quicker the CO2 dissolves into the beer.

The lower the CO2 pressure, the higher the required to carbonate to the desired amount. Find the temperature at which you will carbonate, and then find the desired quantity of CO2 in that column.

Cooking With Leftover Keg Beer

Throwing away keg beer because it has gotten flat is a waste of money and effort.

If it’s too late for your left-over beer to be drunk, use it as an ingredient in several recipes. Here are some recipes you can make with your leftover keg beer.

Braised Greens

  • Soften the onion in a skillet with chopped bacon.

  • Throw in a sturdy green, like collard greens, radish greens, kale, beet greens, or swiss greens, with the leftover beer.

  • Stir until the greens are fully blended with the oil.

  • Add salt, pepper, brown sugar, and your favorite spices—maybe cayenne for some heat.

  • Let the greens cook at low temperatures until they are tender. Now you have a simple, flavor-packed side dish to match almost anything.

Steamed Shellfish

  • In a broad saucepan, soften certain flavorings, such as onions, garlic, leeks, and fennel.

  • Add some onions, potatoes, or meat and cook nearly all the way through.

  • Add some spices. Pour in your leftover beer and let it gurgle for a little bit, then add the shellfish and cover the cup. You can see when the palms are done frying because they’ve opened up. The crab is ready when the red is vivid and the meat is flaky.

  • Add all your heart’s wishes to the Old Bay and dip some crusty bread into the ocean beef broth.

Braised Meat

  • Season your meat with salt, pepper, and the spices of your choice. Brown it in a large pan.

  • Once it’s browned all over, take it out. Add some fat and toss in some onion and garlic before caramelized. To make the sauce, whisk in the spices.

  • Put the meat back in the pan and coat with the sauce. Get the sauce to a boil.

Note: If you’re making short ribs, chuck the pan in the oven for a few hours until the beef is moist. While you’re making chicken, let the chicken boil on the stove until it’s cooked through. The beer will ensure that the meat remains moist inside.


  • Mix flour, baking powder, salt, and sugar.

  • Pour the leftover beer and let the dry ingredients absorb it. Add the mixture to the pan, drizzle the butter, and bake.

  • Customize your loaf by applying whatever flavors you want to the dry ingredients.


  • Heat butter and buttermilk. Do this until it gets warm.

  • In a big bowl, mix flour, salt, baking powder, baking soda, sugar, and your favorite spices.

  • Beat the eggs separately and whisk with the vanilla. Slowly whisk the beer mixture into the egg mixture.

  • Add the dry ingredients with the liquid until the mixture is just somewhat lumpy.

  • Place a thin layer on a buttered waffle iron to make waffles or on a griddle to make pancakes. This is a natural balance between sweet and savory breakfasts.

Brined Meat

Brining meat with beer hydrates it, leaving it moist inside and outside. It also infuses the meat with sweet, malty, hoppy flavors and gives it a butter-soft feel.

Leaner meats, such as chicken breasts and pork chops, are usually brined because they lack the fat that adds taste and moisture to other forms of meat.

  • Use equal parts of water and beer. Add a generous amount of salt and the flavorings of your choice. Crushed garlic, peppercorns, thyme, bay leaves, and citrus are all fine options.

  • Keep the meat in the brine for about an hour per pound. Take it out, pat it dry, and let it dry in the refrigerator for a few hours if you have time. You should bake it in the oven only after that. The brine is doing all the heavy lifting for you.


Beer goes very nicely in marinades. Use it as a basis for the marinade and apply salt and seasonings to your taste. If it tastes good, the meat immersed will likely taste good as well.

Clean Your Home With Leftover Keg Beer

Repurpose miserable, flat beer by using it as a multipurpose household tool. From polishing furniture to fertilizing the lawn, there are seven brilliant ways to use leftover beer.

Trap Pests

If fruit flies or rodents invade your house, beer will help you banish them. All bugs are drawn to beer sugar. Beer will banish them without causing you to resort to harsh chemicals or poisons.

Pour some beer in a jar—ideally, a non-transparent one for fruit flies—and puncture tiny holes in the lid.

Fruit flies are going to fly into the holes and get stuck inside. It’s not pretty, so there’s no crowd of flies hovering around your fruit bowl.

For rodents, approach the issue by dumping an inch of beer into mulch. Afterward, make a little ramp with a piece of wood.

The mice will curl up and slip onto the mulch, but they’re not going to sink. Then relocate the mouse to a safe place outdoors, far from your house.

Shine Copper or Gold

The dregs of beer in kegs were once gathered to clean the copper vats in breweries. The mild acidity of beer tends to improve the brilliance without staining the brass.

You can use the same technique for copper pots and pans, gold rings, or even your precious Moscow Mule mugs. Dampen a fluffy towel with a beer and get it to shine. 

Remove Coffee Stains

Beer helps pull sticky coffee or tea stains out of fabric. Spot-test a tiny area first to make sure you’re not doing any harm. Douse the stain in the beer and blot if it helps.


You can do a lot of things to avoid wasting an unfinished keg beer. If you intend to drink it the next day or at the next party (within a week), force the beer with CO2.

If you’re too lazy to do that, you might as well cook with the beer or make it a household cleaning resource.


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