Soapy shells By Staff Reporter - Feb 28, 2018 Share on Facebook Tweet on Twitter Nokuthandwa Mdluli cleans her egg. CBC St Johns Grade 00’s learnt about the importance of using soap when washing their hands and toothpaste when brushing their teeth. They cleaned eggs with toothpaste to see how necessary toothpaste is. 1 of 2 Nokuthandwa Mdluli cleans her egg. Emma Bester.