yes washing powder would suck it out.
Gumption for quick cleaning…
I always have a jar of gumption handy. It seems to erase almost any type of household mark when other things don’t.
Simply apply a small amount to a damp cloth and rub gently until the mark is gone. Due to the product being a paste you do need to go over the area again with another damp cloth to remove the residue.
NOTE: Gumption is available in most grocery stores and is approximately $4.00 but will last ages. Be careful where you use it though – it is quite abrasive. It was used on the front of the microwave and now it is scratched.