[hecticskeptic]

Can you find any record of ‘soap’ being used for washing dishes? Good luck....

[Harmless Teddy Bear]

Try reading M. E Snodgrass's Encyclopedia of Kitchen History. There is firm evidence of soap being used to wash dishes from the Renaissance on.

There are "soap savers" that were used to keep the bars of soap from getting lost in the dishwater. Even the British Navy made soap to wash the dishes while at sea back in the 1700s.

So the idea that washing dishes with soap is something new is simply not true.