There are 5 pieces of brushes in the package. They are completely free of plastic packaging, only wrapped PLA bag(for hygienically purpose) and in a paper envelope or carton box that is used for shipping.
The white coating is common, it is not a mold, it is dried resin of the toothbrush. The white color is mainly due to Calcium.
Mineral and vitamin content is lower than in fresh toothbrushes.