To keep moisture out of your keezer, there are a few steps you can take. Moisture can be a problem because it can lead to mold and mildew growth, which can affect the taste and quality of your beer. Here are some tips to help you keep your keezer dry:
1. Seal any gaps or leaks: Check your keezer for any gaps or leaks where moisture can enter. This could be around the lid, the door seal, or any other openings. Use weather stripping or silicone sealant to fill these gaps and create a tight seal. This will help prevent outside air from entering and moisture from accumulating inside.
2. Use a dehumidifier: If you live in a particularly humid area, using a dehumidifier inside your keezer can help remove excess moisture from the air. Place it near the bottom of the keezer where moisture tends to collect. Make sure to empty the water reservoir regularly to prevent overflow.
3. Install a fan: As you mentioned in your question, installing a fan can help create airflow inside the keezer and promote evaporation of any moisture that may accumulate. This can be especially effective if you have a damp or humid environment. You can wire a 12-volt fan to an old cell phone charger, as you described, and position it to circulate the air within the keezer.
4. Use desiccant packs: Desiccant packs, such as silica gel, can help absorb excess moisture in your keezer. Place a few packs near the bottom of the keezer or in areas where moisture tends to collect. These packs can be found in hardware stores or online, and they are often used to keep moisture out of electronic devices or food packaging.
5. Monitor temperature and humidity levels: Keep an eye on the temperature and humidity levels inside your keezer. Ideally, the temperature should be set to the desired serving temperature for your beer, and the humidity should be around 30-50%. Use a digital thermometer and hygrometer to track these levels and make adjustments as needed.
6. Regularly clean and dry your keezer: Cleaning your keezer regularly is important to prevent any mold or mildew growth. Empty and clean the keezer, including all the taps, lines, and kegs, using a mild cleaning solution. Allow everything to dry thoroughly before reassembling and using again.
7. Consider using moisture-absorbing materials: There are products available specifically designed to absorb moisture in enclosed spaces. These can be placed inside your keezer to help keep it dry. Some examples include moisture-absorbing crystals, moisture-absorbing bags, or even cat litter (make sure it is non-toxic and unscented). These materials can be effective in reducing moisture levels.
Remember, preventing moisture in your keezer is crucial for maintaining the quality of your beer. By following these steps and regularly monitoring and maintaining your keezer, you can ensure a dry and mold-free environment for your kegs and taps. Cheers!