Your Song Rita Ora
Just how filthy is Su's handbag? Take a look at the tests Martin is having done to find out.
Martin gives Su's handbag to Nicky and Caray, from Anglia Ruskin University's Science and Technology department, ready to be tested.
Before we've even started testing it's not looking great. This is the inside of Su's bag - never been cleaned!
Martin begins to take out the (filthy) items that are going to be tested.
Martin helps Caray take a swob of the handle of Su's bag.
"The inside pocket surely can't have bacteria in it, it's zipped up all the time!" - Well we'll find out soon Su.
Used everyday, her car key is placed in the container for tests.
The final swab is taken. Is bacteria from her bag making her phone dirty too?
Su thinks this cream is good for her hands, but is it actually just making them dirtier?
Su glassed case is a nice shiny silver colour... but is the shine caused by bacteria? We'll find out soon.
Tightly, sealed and ready for the growth of bacteria. Will any grow? We'll find out tomorrow.