水活度与干燥脱水食品

Water activity is an important factor affecting the stability of dry and dehydrated products during storage. Dry and dehydrated products have a high level of popularity with today’s consumers. Dry mixes are economical and convenient with increased shelf life, reduced packaging, decreased cost （via weight and/or volume reduction） and improved handling properties. Controlling water activity in a dry product maintains proper product structure, texture, stability, density,an drehydration properties.