How to Clean a Blanco Composite Granite Sink

Blanco sinks have been specially designed to be durable, which is why they’re a popular choice. But knowing how to clean a Blanco composite granite sink can be tricky. Cleaning your sink on a regular basis is a must if you want to keep it looking like new. No matter how low maintenance the silgranit sink claims to be, it still has to be cleaned.

Thankfully, caring for a silgranit sink is actually quite easy. You don’t need a load of special cleaners or fancy equipment to get the job done. The composites that make up these sinks are smooth, so they won’t be hard to clean. The surface is non-porous so that food and drinks won’t stick to them easily. Because of this property they are also more hygienic as well.

In this guide we are looking at the best cleaning techniques for your sink. You can use these tips for your daily, weekly and even monthly cleans to make the whole process straightforward.

How to Clean a Blanco Composite Granite Sink

There are different steps to cleaning your composite granite sink depending on what state it is in. We will go through a few different scenarios so that you can choose the best one for your needs.

Firstly, let’s start out with the items you will need to clean with. As we said you don’t need anything too fancy but it’s best to have these cleaners on standby.

  • A sponge or a soft brush
  • Some mild dish soap
  • Baking powder
  • Soft clothes or paper towels
  • Vinegar
  • Plenty of hot water

Everyday Cleaning

Step 1 – Clearing the Sink

We all throw our dishes and utensils into the sink in preparation for cleaning them. Before you even start to clean the sink, you need to remove anything inside and around it. Anything like utensils or leftover food need to be cleared away. Once you have cleared these away check for food particles all around your sink. Remove any debris that you find, otherwise the cleaning process won’t be successful.

Step 2 – Use Hot Water and Soap for Scrubbing

This process is for a sink that is only a bit dirty and just needs a quick scrub. It’s an ideal step for your everyday sink cleaning. Take your soft brush or sponge and add hot water and mild soap. Gently scrub all around the sink and then rinse it off with the water. Take your paper towels or a soft cloth and dry off the water.

Step 3 – Using Baking Soda

During the cleaning process, if you have noticed any sort of stain, you can bring on the baking soda. Apply the baking soda generously around the sink, paying careful attention to those areas where you noticed the stains.

Step 4 – Use the Vinegar

Once your happy with the baking soda in the sink you can begin to apply the vinegar. These two things are highly reactive when mixed together. This reaction will pull out any stains or marks that are left in your sink. Give the mixture a few minutes to settle down.

Step 5 – Clean the Sink

Now that the mixture has settled down you need to get your brush or sponge again. Use this to scrub away any stains and dirt that have accumulated in the sink.

Step 6 – Rinse the Sink

When you think that all of the dirt and stains have been removed you can rinse out your sink with warm water. If the stains haven’t gone repeat the process again until they disappear. You may also want to dry the sink with your cloth or towel to complete the cleaning routine.

Step 7 – Using Mineral Oil

If you want to restore that shine your sink had when it was new, you can use mineral oil. Mineral oil is inexpensive and can make your sink look brand new once again. Get a tablespoon of oil and apply it to your cloth or sponge. Buff it into the sink using gentle circular motions. Make sure that every area of the sink is hit. Once this has been done wait for a minute and then wipe the oil away with a clean cloth or towel.

The steps above are easy for everyone and can be used daily. Be careful what you choose to clean your sink with. A granite composite sink cannot be cleaned with abrasive materials or harsh chemicals.

For more stubborn stains you can use our guide below.

Cleaning Stubborn Stains

Getting to the tougher stains is more of a challenge with a composite sink. If you find that there are stains from hard water or food then you can use this cleaning guide. First of all you will need:

  • Whitening powder
  • Hydrogen peroxide
  • Soft sponges and cloths
  • Plastic wrap

Step 1 – Mix the Peroxide and Powder

You have to be very careful with this method because you are using chemicals that are tough on stains. Mix together the peroxide and whitening powder until it forms into a thick paste. You should also follow the instructions that come with the powder.

Step 2 – Applying the Paste

Find the stain and apply the paste to it. You should aim for about a half inch thickness of paste per stain.

Step 3 – Cover Up the Paste

Once every stain has been pasted you can grab your plastic wrap. Use this to cover up the spots around your sink where the paste it. This wrap has to be on there for 24 to 48 hours, so your sink will be out of action for a while.

Step 4 – Unwrap and Wipe

Make sure you have left the right amount of time for the paste to work. If the time has elapsed you can remove all of the plastic wrap. Take your soft cloth or a sponge and wipe away the paste carefully.

Step 5 – Rinse Off and Dry

If you have removed all of the paste you can go on to rinse your sink. Clean the whole area with soap or just water so that it is spotless. Then take your towel or a dry cloth to remove any water from the sink.

Caring for a Silgranit Sink

The amazing think about silgranit sinks is that they don’t need a lot of maintenance. You won’t have to crack out the baking soda and peroxide every day of the year. The resins used to make these sinks means that they are entirely non-porous. Any stains that could form should stay on the surface.

Caring for your sink on a daily basis, all you should need to do is rinse it out. If you are concerned about water spots forming on a dark colored sink then you should dry it out after you use it. If you do notice any food stains you can use regular dish soap on them to begin with. A soft bristled brush or sponge should help you remove the stains. Catching the stains at the beginning will prevent harder stains from forming in the future.

If you do notice there are darker stains forming then you can use the peroxide and whitening powder technique we showed you above. However, most of the time you will find that you don’t have to deal with stains. The very makeup of the sink means it will pretty much keep itself clean and you’ll be able to enjoy it for many years to come.


The process of keeping a composite sink clean is easy if you know how to do it. Cleaning it regularly using hot water and dish soap will suffice. Heavier cleaning can be done when you see stains.

Remember that there are also don’ts when it comes to cleaning a composite sink. You should always refer to the manufacturer before using any sort of chemicals on the sink. Abrasive clothes and descaling solutions must be avoided. Cheap scrubbers and scourers that are too abrasive will take the finish off the sink.

It’s worth noting that if the above advice hasn’t worked then you may need to carry out a deep cleaning. A deep cleaning should be your very last resort after using the above advice. Repeatedly deep cleaning the sink will damage its appearance and may also reduce how long the sink lasts. Always rinse the sink out thoroughly after using any cleaning guides to prevent damage and stains.

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