Osmotic treatments imply changes in the respiratory rate of strawberries. They decrease the consumption of O2 and maintain or increase the production of CO2, activating the anaerobic path- ways to obtain energy. During storage, dehydrated samples show a much faster drop in the respiration rate than non-treated sam- ples indicating a faster senescence development. This is more remarkable at higher dehydration levels. The vacuum pulse im- plied a greater reduction in O2 consumption. The mechanical anal- ysis reveals a great decrease in the firmness and cohesion of strawberry samples due to osmotic treatments, especially at higher dehydration levels. However, after storage, samples with different dehydration levels were more similar and there is evidence of the beneficial effects of the application of both vacuum impregnation and calcium enrichment on the maintenance of the texture of dehydrated samples. Structural changes caused by treatments and the differences in the strawberry tissue modify the colour of the samples. The colour changes provoked by the length of storage time are slighter than those caused by the treatments.