does baking soda kill mould

What is Baking Soda?

Baking soda (bicarbonate of soda) is one of those items that should be in everyone’s pantry cupboard.

Baking Soda is a powerful cleaning agent and is especially effective at removing stains and greasy marks from metallic surfaces such as pots, pans, and sinks.

Its mildly alkaline pH level (8.1) means it just eats away stains on other non-porous surfaces such as cups and plates too.

Baking soda is also a powerful deodorizer. If your food scraps bucket is starting to stink, simply wash and dry it then sprinkle a liberal amount of baking soda around the inside of the bucket.

Leave it overnight then wash and dry it again. You’ll be amazed at the results.

This also works well to remove some of the odour from musty smelling carpets. Simply sprinkle the baking soda, leave overnight and vacuum the carpet the next morning.

However, baking soda will not penetrate porous materials deeply enough to kill mould at its roots nor will it have any impact on airborne mould spores.

Baking soda does kill mould on non-porous surfaces but again this is only a temporary measure. As a desiccant it will also absorb some of the moisture that fosters mould growth in the first place.

For general cleaning use about 1 tablespoon of baking soda and dissolve in a bottle (500mls) of water.

To sum up:

Baking soda is a great tool for cleaning surface stains removing mould from some materials. But it will not penetrate and kill mould at the roots or kill airborne spores.

If you’re serious about mould removal you need the experts at Mould Cleaning Australia who will use specialised tools and techniques to kill the mould in every part of the house including difficult to reach roof cavities and underfloor spaces.

Rate this content!

Average rating / 5. Vote count:

No votes so far! Be the first to rate this post.

Book your FREE INSPECTION today!

See Related Content

Wikipedia Reference:


Sodium bicarbonate is used in a process for removing paint and corrosion called sodablasting; the process is particularly suitable for cleaning aluminium panels which can be distorted by other types of abrasives.

A manufacturer recommends a paste made from baking soda with minimal water as a gentle scouring powder, and is useful in removing surface rust, as the rust forms a water-soluble compound when in a concentrated alkaline solution; cold water should be used, as hot-water solutions can corrode steel.

Sodium bicarbonate attacks the thin protective oxide layer that forms on aluminium, making it unsuitable for cleaning this metal. A solution in warm water will remove the tarnish from silver when the silver is in contact with a piece of aluminium foil.