How to descale a Steriliser

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How to descale a Steriliser

– Tips & advice!

Today we discuss tips and advice on how to clean a steriliser. Many parents have concerns about the build up appearing on the surface of their bottle sterilisers.

Why clean a steriliser?

Whether it is your first time or fifth time with a newborn baby, any mum and dad knows that one of the most important pieces of equipment you can buy for your little one is a bottle steriliser. Whether it’s an Electric Bottle Sterilisers, Digital Electric Bottle Steriliser or Microwave Steam Steriliser Bags, sterilisers are your first line of defence against harmful germs, bacteria and viruses. While the steriliser keeps a bottle safe from having your baby contract water-borne diseases and infections, it is important to also keep your sterilising equipment itself sanitary. Probably a more important aspect than how to clean your steriliser is what it is you actually use to clean your steriliser.

The presence of limescale, which is the white, chalky deposit that coats bottles, humidifiers, kettles, and sterilisers, is what you primarily want to keep in check when maintaining a steriliser. Keeping your steriliser clean will also aid in prolonging the life of your steam or electric steriliser.

How to clean a steriliser:

There are several methods in getting rid of scale from a steriliser. The two most popular ways on how to clean a steam steriliser is through the use of a citric acid solution or a vinegar solution.

Citric Acid

Cleaning a steriliser with citric acid is simple but it also means having to go to your local chemist to get this ingredient. Once you have the citric acid on hand, all you need to do is mix 5g of citric acid with 100ml of water, pour the solution into the steriliser and let it sit for 30 to 40 minutes. When the time is up, pour all contents out on your sink and rinse, wipe it dry with a clean kitchen cloth so you can check for any remaining scale on your steriliser. You can repeat the same process a few times, letting it stand for a shorter period each time, should there still be limescale residues present.


Also ideal, and probably a more economical option, is cleaning your steriliser with vinegar. Similar to citric acid, you just need to make vinegar and water mixture before pouring it into your steriliser. The ratio is 1:1, with your water suggested at as much as 40ml per steeping. Leave your vinegar and water solution to soak for anywhere from 30 minutes to overnight, depending how much scale is present. You can also rinse and wipe the steriliser before checking if you need to repeat the process. Although the vinegar option is a more DIY approach to cleaning your steriliser, it may leave a temporary scent on your device.

Descaling sachets

Another easy way to clean sterilisers and highly recommended for cleaning electric sterilisers are the descaling sachets. These sachets are made of components that are less abrasive than both the citric acid and vinegar solution. They are also specifically made to clean any type of steriliser, making sure that they eliminate limescale more precisely. Descaling sachets are slightly easier to use because all you need to do is pour them into your steriliser with some water. Once the solution is ready, you just let the steriliser run for one cycle. If you are religious about your maintenance, letting the solution run for one cycle is usually enough to do the trick. The same descaling sachets are also recommended for the handier microwave steam sterilisers.

Whether you choose the citric acid solution, vinegar solution, or the descaling sachets, what is important is that you always make sure your frontline defence for bacteria and germs is religiously kept clean and the steriliser itself bacteria and germ-free. As mums and dads, the last thing you would want is for your steriliser to be the source of unwanted germs on your babies’ bottles and teats.

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