Mapacho Storage
Mapacho can be preserved for many months if it is vacuum packed, unopened. Once opened, it should be stored in a paper wrapper. When the exterior becomes brittle over time, you can spray the exterior with distilled water, so that the material will slowly absorb the water and the outer layer will be fresh again. Pack the humidified Mapacho in a plastic bag for a day or two at most. Then keep it again on dry paper.
Mapacho cannot be stored in a plastic bag if it is not vacuum packed, as this can cause mold to form. Store it on paper, in a cool, dry place.