Review on Enhanced Searchability: Antibacterial Building Blocks with Vibrant Colors by Charles Mathews

The packaging is nice, the blocks look high quality and have soft edges. However, the blocks have a strong odor straight out of the box (there was no odor in the box). The smell is still very strong after washing them with soap and boiling/soaking them in hot water overnight. My daughter loves to bite everything so I'm not sure if it's safe for her to play.