Does humidity tend to rise or fall?

Answered by Nicholas Phillips

As a sommelier and brewer, I have had the opportunity to observe and experience the effects of humidity on both and production. Humidity levels play a crucial role in the fermentation and aging processes of these beverages, as well as in their overall quality and taste.

During the winter months, humidity levels generally tend to be lower. This is because cold air has a lower capacity to hold moisture compared to warm air. As a result, the air feels drier and less humid during this time of the year. I have noticed that in my wine cellar, where I store and age my collection, the humidity levels decrease in the winter, making it necessary to monitor and control the humidity to ensure optimal conditions for the wines.

In contrast, during the summer months, humidity levels tend to be higher. Warmer air has a greater capacity to hold moisture, and as a result, the air feels more humid. This increase in humidity can have significant implications for both wine and beer production. When making wine, high humidity can lead to mold and mildew growth on the grapes, affecting their quality and flavor. Similarly, in beer , excessive humidity can result in off-flavors and spoilage of the brew.

I recall a particular incident during a hot and humid summer when I was brewing a batch of beer. Despite taking necessary precautions to control the humidity in my brewing area, the high levels of moisture in the air caused some issues. The excess humidity affected the fermentation process, resulting in a slower and less vigorous fermentation. This, in turn, affected the final flavor profile of the beer, giving it a slightly off taste. It was a valuable lesson in the importance of maintaining optimal humidity levels during the brewing process.

To further illustrate the impact of humidity, let's consider the aging of wine. In my experience, when the humidity levels are too low, the corks in the wine bottles can dry out and shrink, allowing air to enter the bottle and potentially spoil the wine. On the other hand, excessive humidity can cause the labels to peel off and create a breeding ground for mold, which can also negatively affect the wine. Maintaining a moderate level of humidity is crucial for proper wine storage and aging.

Humidity tends to be lower in the winter and higher in the summer. These fluctuations in humidity levels can have significant effects on the production, flavor, and aging of both wine and beer. As a sommelier and brewer, it is important for me to closely monitor and control the humidity in order to ensure the highest quality beverages for my customers and personal enjoyment.