How To Clean A Cast Iron Sink

How to clean a cast iron sink. If you’ve inherited a cast-iron sink, you’ve probably noticed one thing: it’s difficult to keep clean.

The simplest way to do so is to take small steps every day, such as not washing or rinsing dishes in the sink because this can harm the enamel coating on your cast iron.

Instead of taking up important space in your already overloaded kitchen sink meant for water only, wash them in the sink and let them air dry by placing them on a dish rack where they’ll drip dry rather than scratching your sink as required.

How To Clean A Cast Iron Sink

guide to clean a cast iron sink

We will discuss here the methods of cleaning a cast iron sink.

Method 1: Use the Bleach

You’ll want to know the finest technique to safely restore the brilliance of your sink, composed of white porcelain coatings.

Dress in safety clothing and gloves before stepping over to your supply cabinet to prepare for this rigorous makeover.

Fill your sink halfway with the hottest water (boiling would be much better!) and 13 cups of bleach for each gallon with the help of a stopper.

Use a large spoon or spatula to stir everything up briefly, then set it aside for several hours, depending on how dirty and soiled it is.

After providing plenty of time for the bleach to do its job, the sink should appear significantly cleaner than it was previously.

Soak a soft cloth in a quart of warm water with about a third of a cup of bleach, then scrub away until it returns to its original gleaming white hue!

Method 2: Clean with Baking Soda

Baking soda is an equally effective alternative if you don’t want to use cast iron sink cleaner. To begin cleaning your sink, make a paste by mixing a tiny amount of water with the baking soda and applying it to your old sink.

If there are still stains on the surface, replace the baking soda with vinegar and apply the paste as previously.

After that, use a soft cloth to scrub the surface to get rid of the brown stains once and for all. You might believe cleaning your sink is a simple task, but you must remember that it takes time.

It’ll take a while, but trust us when we say that those dark stains will vanish once all the components start doing their magic.

Method 3: Scrub with Cork

scrubbing sink with cork

Using cork to clean your cast iron sink is a terrific method to keep it looking new. Although the pin is soft, it is sturdy enough to withstand a lot of pressure during cleaning.

For smudges and stains, this type of substance acts as an eraser. Wipe it gently over the damaged areas to remove undesired stains without disturbing the surface of the concrete!

It will save you money because cork can be used on vast surfaces without quickly wearing out, so you won’t have to buy artificial stones immediately.

Method 4: Keep the Sink Empty

Many individuals are unaware that leaving dishes in the sink for long periods causes smudges and stains. Emptying your sink as often as possible is the greatest method to keep it looking new.

If you can’t get all of your dishes out of the sink immediately after each meal, at the very least, lift those you can go out of the sink, so they don’t sit there too long.

After a week or so of doing this, you’ll notice how much less frequently you need to clean your sink due to all the buildups generated by food scraps and trapped grease!


What do you use to clean a cast iron sink?

The most important thing you should remember when attempting to clean a cast iron sink is that you’ll need to find ways to limit your usage of harsh soap because it ruins the metal coating on the sink, creating a glossy surface that is less safe and less effective.

Instead, use baking soda in place of dish soap. Baking soda also happens to work way better than vinegar. Vinegar can leave streaks behind, which can’t be tolerated because they ruin the appearance of your sink – and nobody wants that!

What is the difference between cast iron and porcelain sink?

Porcelain is non-porous, which means its body is safe and smooth for easy cleaning. It also resists staining, so you’ll spend less time scrubbing away at stains than you would with other materials.

The weight of a cast iron sink means that it must be fastened to something stable to prevent damage or unreliability.


If you follow the procedures, you should be able to bring an old, stained cast iron sink back to life. We’ve found bleach to be one of the most effective techniques, and cork can help remove small scratches while also adding a great finishing touch to your sink. You only have to spend a few seconds caring for your cast iron sink every day. It’s simple to do because it will flow easily once you get into the practice of remembering it daily.

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