The plastic bowls can leach chemicals into the food and water and can cause a contact dermatitis on the pup's face (mostly around the mouth) or has been known to cause seizures in sensitive pups after prolonged exposure.
Hairline cracks can occur in the plastic as it ages, and also in ceramic glazes which will hold bacteria. Any ceramic that gets hairline cracks or chipped should be tossed (that includes tea and coffee cups and mugs used for human consumtion). |