Some great suggestion as I too only been using bleach .

Interesting to read all the different suggestions !

I’ve only ever used bleach. I’ve f you find the mould keeps returning, you may need to consider re grouting

White vinegar is a good thing spray on leave for 30 mins then rinse off

Bleach doesn’t kill the mould – white vinegar does. After spraying with a vinegar solution and leave for a while, the go crazy spraying it with bleach to get the grout back to white

Bam Spray removes mould and grime from tiles quite easily. Spray it on, scrub it with a soft brush and rinse off with water. If you are cleaning a tight corner you can use an old toothbrush. You can also clean marble with it. We cleaned an 89 year old headstone at a Cemetery. As the lettering is lead we did those sections slowly to make sure it didn’t go under it at all.

if bleach doesn’t work etc then you will need to re-grout. you can do this yourself for cheap

I make a paste of nappysan and water and use a toothbrush to scrub the grout.

I forgot about Clove Oil. I did get some Selleys Mould Killer the other day and it seems to have worked.

Ive got oil of cloves in my medicine cupboard. I always use it for tooth aches. It tastes yuk but anything to get rid of toothaches. Hope it works.

Hope this helps:
Clove oil pure essential oil by Tinderbox Australia. Oil of clove removes mould by actually killing the spores, not just bleaching and hiding it! Read the HOW TO remove mould with clove oil RECIPE below. Clove oil has many other uses including taking away the pain of toothache! 15ml

why remove mould with clove oil?
We have a great reference from a Brisbane City Council inspector reviewing flooded, smelly, already mould-growing homes. He advised to keep away from chlorine bleach to clean mould as it only ‘bleaches’ the colour out and does not kill the mould. “It’ll be back in a few weeks,” he said. “CLOVE OIL is the best!”

Clove oil perfume: Spicy. Warm. Oil of cloves combines well with: Lavender, Orange, Ylang Ylang.

Clove oil properties: Analgesic, Expectorant, Stimulant.

Cleaning uses: Mould removal: Add a couple of drops of clove oil to a paste of bicarb and vinegar and scrub grout with a toothbrush every few months (source: Spotless). Clean mould from hard surfaces: mix 1/4 teaspoon of clove oil per 1 litre of water, spray on, leave 20 minutes and wipe off, spray on again and leave until mould dies and drops off (source: Shannon Lush, ABC local radio).
Room disinfectant
Insecticide

Personal uses: Clove oil has long been used for analgesic (pain killing) purposes.

Bronchitis and Colds
Indigestion
Infected Wounds
Insect Repellant
Mouth Sores
Muscle and Nerve Tension
Toothache
Contra-indications:
Clove oil is highly irritating to the skin and must be diluted to concentrations less than 1% prior to use.

Please take care as baby and sensitive skins may be affected by clove oil residue on items that come into close contact with the skin – for example, baby car seat covers.

To help keep mould to a minimum once you have eliminated it from your surfaces try our Mould aroma gel that removes mould spores from the air using clove oil.

Read more info about clove oil and how to clean with clove oil on our blog. Find recipes for how to make your own clove oil and green cleaning recipes on Biome’s Pinterest.

Great question, following with interest, especially tips for old grout in an old home…..

The only thing that will work is OIL OF CLOVES, you can buy it at the chemist. It may take 2 or 3 goes, but it works. I used it after the 2011 flood to clean the mould from all the woodwork where the flood water came. It is a very small bottle(10 mls) directions on the bottle.

Maybe get some professional advice if it is persistent.

Its not a natural cleaner or anything but I use a product from White King, especially for bathrooms and cleaning grout. Its very good and works every time!