Mrs Hinch swears by this £4.50 Amazon buy for refreshing grout – you NEED to try it!

This £4.50 grout cleaner is loved by Mrs Hinch – and now us – for transforming tired tiles and dull bathrooms

A family bathroom with white metro wall tiles, monochrome patterned floor tiles and a bath-shower with painted deep blue panel
(Image credit: Chris Snook © Future)

We're not sure about you, but we are fed up of trying out copious grout cleaners – homemade and store-bought – and getting little to no results. Luckily enough, we are interrupting your day with some good (grout-related) news, then. This week Mrs Hinch revealed to us just how she keeps the oh-so white grout in her bathrooms looking clean. Because we all love the look of white grout, but unless you want to spend your days scrubbing it clean, it's a no-go. Just choose a darker colour! If you already have white grout or sealant in your bathroom or kitchen, then we feel for you. We have the same, and with no window in our bathroom and a very small fan, grout mould has become our worst enemy. Not anymore, though – thanks to this Mrs Hinch hack, that is.

After neglecting her en-suite for a few weeks, Sophie showed us this incredible grout cleaner action – the results truly are incredible. So much so that we bought a bottle from Amazon straight away. This stuff is just £4.50, and it's pretty much the only product you need to give your bathroom a new lease of life. Prime members, this can be with you tomorrow for a weekend of cleaning – what else is there to do in lockdown, really?

How to use UniBond RE-NEW?

  1. First of all, you'll want to clean your tiles. Mrs Hinch is clever enough to use a stick mop to do this, to prevent reaching and just to make it an easier chore, really. 
  2. If you can see mould in your grout, then spray it with some mould spray. We recommend the Astonish Mould & Mildew Blaster. Wipe away and wait for your grout to try.
  3. If your grout isn't mouldy, just discoloured, then you can skip the second step and get straight to it.
  4. Shake your bottle of UniBond RE-NEW downwards before every squeeze (this is essential to make sure you get no air bubbles).
  5. Hold the tip over your current grout or sealant, and apply over the top while holding the bottle with the logo facing towards you. 
  6. Once you have finished one section, go back with a cloth (one that you don't mind throwing away after or it getting really dirty) and with your finger covered by the cloth, wipe the area you just applied sealant to. This will press the product into your grout while removing the excess.
  7. Leave to dry and be sure to take before and after photos – you won't believe your eyes.

How to minimise mould grout?

The trick to minimising mould grout is targeting it before it gets bad – and this means constantly keeping on top of it. To do this, you may want to buy a dedicated spray bottle – like this Bamboo one from Dunelm – and keep it in your bathroom at all times. Fill it with white vinegar and water and spray it over your tiles when needed.

You'll also need to wipe down your tiles frequently to prevent mould grout from forming – just as often as you clean your shower screen! As mentioned above, Mrs Hinch uses her trusty stick mop to reach her bathroom tiles when it comes to cleaning them – a very smart idea!

What causes mouldy grout?

Poorly ventilated bathrooms will see mouldy grout form. If your bathroom doesn't have a window or its window is small, you'll want to keep your bathroom fan on for longer periods after showering or having a bath. It's also a good idea to open your bathroom door straight after showering to let the steam out. You could also invest in a dehumidifier to use in your bathroom – see our guide to the best dehumidifiers for our top recommendations.

Check out our shopping edit on Mrs Hinch storage buys – for all of her clever hacks to maximise the storage space in your kitchen, bathroom, bedroom...

Annie Collyer
Annie Collyer

Annie joined the Real Homes team in 2018 as our Deals Editor. Now, as our UK Shopping Editor, she spends much of her time giving advice on what you need to add to your shopping cart. Whether that be a sofa bed for your spare room, accessories to give your space a new lease of life, shiny new appliances for a kitchen or some smart tech for an easier life. She's also our fitness and beauty guru, with hands-on experience with some of the top hair tools and the best home gym equipment around. Otherwise, you can find her rearranging the furniture in her space-savvy London flat, DIYing accessories to fit with her ever-changing colour scheme, or going on long walks with her pug. Next up on her to-renovate list is her bathroom...