Astonish Mould & Mildew Remover also costs £1.25 from Morrisons.
Astonish Mould and Mildew Blaster claims to “effectively remove mould and mildew in minutes, killing 99.9 percent of bacteria”.
Other suggestions from Mrs Hinch fans included using HG Mould spray, bleach, limescale remover, Cillit Bang and shaving foam.
Grace Glover commented: “HG Mould spray and leave for 30 minutes. Use the shower head to rinse clean.”
Michele Painter replied: “Not saying it’ll be perfect but seriously try bicarbonate of soda and water paste.
“Put on all the grout with a toothbrush, leave for 24 hours then brush with a toothbrush again and rinse. You’ll be surprised with the results. Not sure about the sealant I’m afraid.”