Mould is one of the most common household problems in Australia — especially through late summer and early autumn when humidity lingers in bathrooms, wardrobes, and coastal homes.

The good news? With the right approach, it can be treated safely and effectively.

Before you reach for harsh chemicals, here’s what you need to know.

Why Does Mould Grow?

Mould thrives in three main conditions:

1. Moisture – Steam from showers, condensation, leaks, or damp air

2. Poor ventilation – Closed windows, limited airflow

3. Organic material – Timber, grout, fabrics, plasterboard

When moisture sits on porous surfaces, mould spores settle and multiply. Bathrooms, laundries, wardrobes, and window frames are common hotspots.

Understanding why mould appears is the first step in treating it properly.

Why Bleach Isn’t Always the Best Solution

Bleach is often the first product people use — but it isn’t always the most effective long-term treatment.

While bleach can lighten visible mould stains, it may not fully penetrate porous materials like grout or timber. It can also leave behind moisture, which mould needs to regrow.

In addition, bleach fumes can be harsh in enclosed spaces.

A treatment designed to kill mould spores at the source — rather than simply lighten them — is generally more effective for ongoing prevention.

Safety First: Before You Treat Mould

When cleaning mould, always:

• ✔ Ensure good ventilation (open windows or use exhaust fans)

• ✔ Wear gloves

• ✔ Avoid dry brushing mould (this spreads spores into the air)

• ✔ Spot test delicate or painted surfaces

• ✔ Gently wipe rather than aggressively scrub porous materials

  If mould covers a very large area or is linked to structural water damage, professional assessment may be required.

  General Steps for Treating Household Mould

  For most small household areas:

  1. Lightly spray the affected surface.

  2. Allow the solution to sit (10–15 minutes is common).

  3. Gently wipe clean with a cloth.

  4. Ensure the area dries completely.

  5. Improve ventilation to prevent recurrence.

  The key isn’t just removing visible mould — it’s reducing moisture so it doesn’t return.

  Prevention Matters Just as Much as Treatment

  After treating mould, focus on prevention:

  • Run exhaust fans during and after showers.

  • Open windows regularly.

  • Avoid drying wet towels in enclosed spaces.

  • Leave wardrobe doors slightly ajar if airflow is limited.

  • Check seals around windows and wet areas.

  Small changes in airflow can dramatically reduce regrowth.

  A Natural Approach to Mould Treatment

  At Oil of Cloves, we believe cleaning solutions should be effective without being unnecessarily harsh.

  Clove oil has long been known for its anti-fungal properties. When formulated correctly, it works to target mould spores while remaining suitable for everyday household use.

  Treat the problem properly. Improve airflow. And create a healthier home environment — naturally.

  Need Help With Specific Surfaces?

  In our next guide, we’ll cover how to treat mould on:

  • Bathroom tiles & grout

  • Timber & painted surfaces

  • Fabric & clothing

  • Wardrobes & cupboards

  Because mould on tiles isn’t treated the same way as mould on timber — and knowing the difference makes all the difference.