Your basil and chives are full and hardy, and your garden is bursting with colorful blooms. You can only keep up with so many fresh herbs and newly cut flowers, however, so it’s time to consider ... Drying is a mass transfer process consisting of the removal of water or another solvent [1] by evaporation from a solid, semi-solid or liquid.

Understanding the Context

This process is often used as a final production step before selling or packaging products. A drying method is defined as a technique used to remove moisture from materials, typically through the application of heat, which drives water from the substance and allows for the measurement of weight loss to determine moisture content. Drying food is simple, safe and easy to learn. With modern food dehydrators fruit leathers, banana chips, pumpkin seeds and beef jerky can all be dried year-round at home.

Key Insights

Dried foods are ideal for backpacking and camping. They are lightweight, take up little space and do not require refrigeration. Drying food is a method of food preservation that removes enough moisture from the food that bacteria, yeast and molds cannot grow. Low humidity, low heat and good air circulation are critical for successful drying. Explore food drying: methods, science, & impact on preservation, quality, & nutrition.

Final Thoughts

Learn about techniques from sun drying to freeze-drying! Drying is one of the oldest and most commonly used methods in the processing industry, yet it remains one of the most complex and least understood operations because of the difficulties and deficiencies in mathematical modeling and simulation. The drying process involves the removal of moisture from a material through evaporation. The drying mechanism can be complex and depends on various factors, such as the type of material, the drying method used, and environmental conditions.