Moldy Wet Keezer SolutionSunday, December 12th, 2010
Here’s quick tip for your keezer if you are having moisture or mold problems. Purchase a moisture absorbing product like DampRid or DryRid and drop it in your keezer (clean your keezer first if it is moldy). You can find DampRid or a similar product at your local hardware store next to the cleaning products. I spent about $10 on this and I’m very pleased. My keezer is now bone dry and the mold has not returned.
Freezers are designed to operate below freezing. They naturally collect condensation on the interior walls. Normally the condensation freezes and builds up a thin layer of ice. When a freezer is hooked up to a temperature controller set between 34-50F, the moisture is kept inside the keezer. The higher temperature and humidity creates a breeding ground for bacteria and mold. When beer is spilled it gets even worse. Every drop of spilled beer can turn into a mini breeding colony in a matter of days. Do not try keeping a towel in the bottom, it will just trap moisture and make it worse.
My moisture problem eventually led me to completely clean out my keezer. I let it dry out for about a week after cleaning it. I caulked the interior joints where water would seep into. When the caulk was dry I used an exterior primer paint to coat the surfaces to hide scrapes and rust spots that had developed. Two coats did the trick. It looks brand new inside. With the damp rid bucket in the keezer, it is now completely dry when in operation. I’m not sure how long the bucket will last me. It cost about $10. I set the Damp Rid on the hump so it is not taking up valuable storage space for kegs.
There are other products out there besides DampRid. I looked into buying reusable crystals that you microwave when they change color. There are also electronic devices that you can plug-in every so often to purge moisture. After reading reviews I decided I didn’t want to spend the money for a large unit, and choose to ignore the cheapo units. The cheapo units would require plugging in every one or two weeks, and that would be a hassle. The smaller products are designed for gun safes or closets. An environment like a kezzer where moisture is constantly collecting requires a stronger solution. I also wanted a hands off solution, so the bucket did the trick.
For my setup, I am using a picnic tap to dispense beer from my corny kegs. It takes extra care to keep beer from spilling. I keep a rag inside the keezer to set the picnic tap on so it absorbs any beer left in the spout of the tap. The rag is also handy to wipe up spills.
It might be possible to purchase moisture absorbing crystals in bulk. I believe it is just Calcium Chloride. Maybe one of our readers knows more about this?