Brian Antal tells us ... the V.P. hopeful was only at the kitchen for 10 to 15 minutes and only interacted with one of their "clients."
Antal -- who wasn't at the soup kitchen at the time of the Ryan visit -- said his volunteers left some dirty dishes in the kitchen for Ryan to clean.
But when we asked him if the Ryan people had orchestrated the dish-cleaning stunt, Antal said, "No comment."
There is video floating around, showing Ryan giving a pan one scrub -- and that was the extent of the washing.