You’ll never forget to wash your hands again after seeing this disgusting photo

Learning to wash your hands is a basic part of childhood and yet, for some, it just doesn’t seem to stick.

Everyone knows it’s important, in a study conducted by the Bradley Corporation, 92% of Americans say they believe it’s important to wash their hands after using the bathroom, but only 66% of people actually do it. Gross.

However, that percentage just might rise, as a teacher’s experiment about dirty hands is going viral, showing not just her students, but everyone, how disgusting it is to skip the soap and hot water.

Donna Gill Allen posted a photo last month on Facebook of the “grossest yet coolest experiment,” which she used to teach her students about germs and how they spread. She had all of her the students touch three pieces of bread. One piece of bread they touched while they wore gloves (the “controlled” bread), another piece they touched after they washed their hands, and the final piece of bread every child in the class touched with their dirty hands.

She put the pieces of bread in baggies and labeled them accordingly. The class then watched over time as the pieces of bread with clean hands and gloved hands stayed white and normal, while the dirty piece of bread became covered in multi-colored mold.

Donna shared the resulting photo of the bread and it quickly went viral. It has been shared over 75,000 times on Facebook with people praising the experiment as a lesson that all people need to see and tagging their friends who are teachers so they could do this in their classrooms as well.