Essential Waitrose Thick Bleach costs 70p while Asda Thin Bleach Just Essential costs 42p.
Other suggestions from Mrs. Hinch’s fans included using Pink Stuff Paste, Astonish Mold and Mildew Remover, a grout pen, bicarbonate of soda, and black harpic.
Linda Reeve commented: “Pink Stuff paste and a tile grout brush. Hard work but effective.
Justin Sharratt said: “I sprayed mine with Astonish Mold & Mildew Spray and scrubbed it with a toothbrush.
“To be fair, I only have a small bathroom and it’s going to be time consuming. It’s still not perfect but I’m looking forward to replacing the whole thing next year. Never again will I choose that tile and grout combination .