Controlling humidity in a cheese fridge is crucial for proper aging and preventing mold growth. One effective method involves using a saturated salt solution.
Understanding Humidity Control for Cheese
Maintaining the correct humidity level is essential for preventing cheese from drying out or developing unwanted mold. Different cheeses require different humidity levels, but a general range is 70-95%.
Using Saturated Salt Solution for Humidity Control
One simple and cost-effective method is to create a saturated salt solution. This technique leverages the fact that certain salt solutions, when kept saturated, will maintain a relatively stable humidity level within a closed container.
Creating the Saturated Salt Solution
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Gather your materials: You will need table salt (non-iodized is preferable), water, and a small container.
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Mix the solution: Combine approximately 1 tablespoon of table salt with 1 teaspoon of water.
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Achieve a slushy consistency: Stir the mixture until it forms a thick, "slushy snow" consistency. You want to ensure there is undissolved salt at the bottom. This indicates that the solution is saturated. Add more salt if needed to achieve saturation.
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Add Additional Water: Combine this "slushy snow" mix with an equal amount of water.
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Place in the Cheese Fridge: Place the container with the saturated salt solution inside your cheese fridge.
How It Works
The saturated salt solution will either absorb or release moisture to maintain a specific humidity level. The type of salt used determines the humidity it will maintain:
- Sodium Chloride (Table Salt): Will maintain approximately 75% relative humidity at room temperature.
Monitoring Humidity Levels
While a saturated salt solution provides a stable humidity environment, it's still important to monitor the actual humidity levels within your cheese fridge. Use a hygrometer to track humidity and make adjustments as needed. You may need to experiment with different types of saturated solutions (different types of salts) or add additional moisture sources, or dessicants based on the specific cheese and desired conditions.
Additional Tips
- Air Circulation: Ensure proper air circulation within the fridge to prevent localized humidity variations. A small fan can help.
- Cheese Wrapping: Use appropriate cheese wrapping materials (e.g., cheese paper, waxed paper) to help maintain moisture around individual cheeses.
- Regular Inspection: Regularly inspect your cheese for mold growth and adjust humidity accordingly.
By using a saturated salt solution and monitoring humidity levels, you can create a favorable environment for aging your cheeses properly.
