The Most Effective Natural Killers

Tackling mould with eco-friendly materials is often more effective than using standard bleach, which can actually leave "roots" behind in porous surfaces. Natural acids and antifungals penetrate deeper to kill the spores.

• White Vinegar: Its 5% acidity kills about 80% of mould species, including black mould. Unlike bleach, it can penetrate porous materials like drywall or wood.

• Tea Tree Oil: A powerful natural fungicide that kills spores and prevents their return. While expensive, a small amount goes a long way.

• Oxygen Bleach ("Green Bleach"): A non-toxic alternative to chlorine bleach that uses oxygen to break down mould protein structures without toxic fumes.

• 2. How to Clean Specific Areas

  Walls & Ceilings: Undiluted VinegarSpray neat white vinegar directly on the mould. Let it sit for 1 hour. Scrub with a brush, then wipe with a damp cloth.

• Silicone Sealant: Vinegar & Bicarb PasteMix 4 tbsp vinegar with 8 tbsp baking soda to make a thick paste. Apply to the sealant and leave overnight. Scrub with an old toothbrush the next morning.

• Grout & TilesTea: Tree SprayMix 2 tsp tea tree oil with 2 cups of water. Spray and do not rinse; the oil needs to stay on the surface to kill the fungus.

• Fabrics / Clothes: Vinegar SoakSoak items in a 1:1 vinegar and water solution for 45 minutes. Wash on the hottest setting safe for the fabric and sun-dry if possible.