We check our diapers many times to make sure they have a soft, baby powder-like, odor masking scent. A different smell may be detected in the event that the diapers absorb odors during shipping or warehousing. Also, the smell created during the bonding process in the factory may be detected in rare cases if the box is very new. If the smell of a soiled diaper can be detected, it's likely time for a fresh one. We'd love the opportunity to help you with this. When you have a moment, we hope you will call us at 1-800-632-7435.