Edible Millet Cutlery falls under food category and hence, hygiene in of paramount importance. These disintegrate in less than a week, unless stray animals and insects do not eat them up sooner.
Edible Millet cutlery cannot be reused. These are baked at high temperatures; therefore, the likelihood of microbial spores to survive is very little. Even if these micro-spores land after production, they are not likely to germinate because, the products are dehydrated (which is why they have long shelf life, even without preservatives). Moisture is essential for life to germinate/generate.