Why should pastillage be stored carefully?

Pastillage is a type of sugar dough that is primarily used for decorative purposes in confections. It is sensitive to moisture and changes in humidity, which can adversely affect its texture, making it either too soft or too brittle. Storing pastillage carefully is crucial to maintaining its desired firmness and pliability. If it is exposed to moisture, it could become sticky, lose its structural integrity, and not hold up in decorative applications. Therefore, proper storage that avoids humidity and protects it from moisture is essential to ensure it retains its intended texture and usability in confectionery work.