Cheap group head cleaning brush is designed for cleaning the seal in the group head.
The brush has an angled head and bristles made of hard nylon. The brush keeps the shape well considering the price.
Try putting the Portafilter into the group of the coffee machine without any coffee in it. Remove and inspect. There’s a fair chance it will have used coffee sat on the top.
After pulling a shot give the shower plate and group head area a quick once over and it’s done.
The Cheap group head cleaning brush is easy to rinse through. It is also useful for getting the loose grinds from the coffee grinder chute.
A versatile brush and outrageous value for money.