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​The Great Escape: Why Your Airlock Won't Stay Put in Your Carboy

​The Great Escape: Why Your Airlock Won't Stay Put in Your Carboy

Posted by Matteo Lahm on 13th Dec 2024

You're in the throes of your winemaking adventure, everything is going swimmingly, and then - bam! Your airlock decides it's had enough and makes a break for it. It's a common, yet hilarious, hiccup in the home winemaking process. But why does it happen? And more importantly, how can you stop your airlock from playing hide and seek?

First things first, let's address the wet elephant in the room. If your bung or the spout of your carboy is wet, your airlock is going to slip and slide like a kid at a water park. It's a simple fix. Make sure your bung and the glass are as dry as a bone before you try to fit your airlock. It's not rocket science, but it's an easy step to overlook.

Now, if your bung and carboy are dry but your airlock is still acting like a rebellious teenager, you might be dealing with a different issue. Your wine could still be in the throes of primary fermentation, producing more gas than a bean-eating contest. This excess gas can create pressure, causing your airlock to pop out. The solution? Move some wine into a small vessel and put it back when things calm down. Moving it even a quarter of a way down towards the shoulder could be just enough. When your carboy is full to the bottleneck, all that gas is concentrated in the spout. By making the surface area larger and farther from the opening, you are exponentially decreasing the direct gas pressure. 

Remember, as long your airlock is bubbling, you don't have to worry about oxidation. It's like a protective bubble around your precious wine. When the bubbles slow down, that's your cue to top off your carboy.

In the end, winemaking is a journey filled with ups, downs, and the occasional airborne airlock. But don't let these minor setbacks deter you. Embrace the chaos, laugh at the mishaps, and remember - every great wine has a story, and sometimes, that story involves a runaway airlock.

So, the next time your airlock decides to go on an adventure, remember these tips. Dry your bung and carboy, check your fermentation stage, and don't be afraid to remove some wine if necessary. Happy winemaking!