How to Clean Cast Iron Grill

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BBQ on weekends with family and friend is the most relaxing leisure pursuit one can ask for. These kinds of gathering bring much-needed refreshments and keep the relation intact. With people like us working most of the time from Monday through Friday, get-togethers with dear ones are irreplaceable; however, the journey of cleaning that follows is the real issue. Here, we are talking about cast iron grilling grates. Unsurprisingly, they provide superior heat transfer which can grill almost anything from eggplant to jackfruit, but maintenance is the thing which causes a headache.

If you are also dealing with rusty, greasy and grimed grates and grill, then this article is for you. There are many ways to clean iron cast grate grills. We have found the best, easiest, and cheapest ways for which you don’t even have to make a run to nearby All-purpose store.

Cleaning the Grill

Commence cleaning only after determining if your grill grates need deep clean or just requires a regular wash. Know before you start whether you are removing rust off your grates, or after its casual use. It has to be clear, although there are many methods of cleaning are available, but not all are suitable.

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If your grate is greasy, a mild cleaner—usually a natural homemade cleaner from the kitchen—will work. On the other hand, if it is rusty and hasn’t given the pleasure of cleaning consecutively from the last few weeks, then it is a job of honour.

1. Barbestar 3-in-1 Grill Brush

Go for an effortless cleaning using this perfectly angled tri-bristle brush. It’s 10-inch handle effectively removes grime and burnt leftovers and also keeps you out of the burning zone from the extreme heat of the grill.

Furthermore, the stainless steel bristles will not harm the porcelain coatings. This brush will make cleaning easier and faster which makes it a must-have tool in your kitty for grill cleaning. The best thing is you don’t need to switch over to different brushes to clean sides, top and bottom of the grill.

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2. Weber Grill Cleaner Spray

This ultimate grill-cleaning product, non-toxic and citrus-derived, spray cleaner is offered by Weber, which itself is a dominating grill manufacturing company.

The spray is able to tackle any kind of grime even on the cool grill grate. This way you will save fuel as well as time to heat grill grates. You can use it on stainless steel as well as on cast iron, it will never disappoint you.

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3. Use an Onion.

Slice the onion in two easy-to-hold pieces and start rubbing it on the grill. The acidic property of onion juice will pull off the grease. This might not be as effective as the above-mentioned methods are, but give it a try. If nothing happens, it will surely give the onion flavour to your grill.

4. Use Coffee

It’s a surprise. The acidic nature of coffee can yield the result of your grill being cleaned in a natural way. It can delightfully remove grime off your grill and all you need to do is to prepare your coffee in a vessel, then put it into the sink, and finally make the grills bath into it for an hour or so. After this, rinse it with water to get a brand new grill.

Cleaning the Grates

1. Deal with Grease using Baking Soda Solution

For extremely dirty grates, you need to make a paste of 100g of baking soda with 60g of lukewarm water. Carefully apply the paste to iron grates and let it dry for 20 minutes. Then using bristle grill brush, clean it off. Remove the grates overnight, if possible. This way solution will be able to soak and next morning, replace the grates after cleaning them.

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2. Use Aluminium Foil to Clean

In absence of grill brush, switch to tin foils to clean grates. Make a ball, large enough to hold, using aluminium foil and start rubbing it over the greasy grates to remove the debris. Tinfoil creates a buffer between grates and fingers and will avoid burning your fingers during the cleaning process.

3. Use Vinegar

The vinegar in your kitchen cabinet can do wonders in deep cleaning your stainless steel grates. To start with, you need a spray bottle, 2 cups of white vinegar, 2 cups of water, and a spray bottle. Mix the fluids, spray on both sides of the grill grate thoroughly, and let it dry for 10-15 minutes. Now take off any residue using brush or aluminium foil, and you don’t need to wash grates after this procedure.

4. Oil Your Grates Before Cooking

Oiling of grill grates will not only prevent food from sticking but also improves the taste of your food. However, it will surely bring more grease to the grill grates, but cleaning grease is easier than cleaning burnt, rusty grates.

Dealing With Rust

1. Salt Paste

This method calls for strength and time but can get rid of grease and rust with no cost at all. Start with making a thick paste of salt, apply it over grill grates, and rub it using steel wool to remove rust. Repeat this process, if necessary and you will end up getting a clean grill grate.

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Rusting of the grate is due to the moisture that it retains after cleaning. Therefore, never forget to wipe it clean after every rinse and store the grates in a dry place.

2. Use Ammonia

The longer you haven’t cleaned your grill grates, the stronger cleaner they will need to remove rust. Ammonia, however, is another suitable option. Mix Ammonia with water or baking soda, if you need a stronger cleaner. Put it inside a bag along with the grates and keep them outside in open overnight.

Coming morning, you will find cleaned grates, but rinse them thoroughly because ammonia is a strong chemical. Follow this procedure while wearing gloves and a mask.

Helpful Tips for Preventive Maintenance

1. Don’t use other oven cleaners as they cannot completely remove debris and grease off the grill grates. Because unlike other cleaning appliances, grates have tiny pits over grate shell. The leftover food will never bring the barbecue’s smoky flavour we yearn for.

2. Shield your grates using high-quality vinyl cover which coves holes of the grates too. This will protect your grates from dirt and grime that often builds on the grate shells. Enclose your barbeque station when not in use in these covers.

3. When the food has been served, turn the grill to its uppermost temperature and cover it to warm clean your grates. Have your dinner and then clean the station.

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4. Don’t use low-quality grill grate bristle brushes, because their bristles fall off and can move into your food. These thin bristle can harm you and are almost undetectable.

5. Clean them after every use. If you keep putting off this task on ‘some’ other day, you will end up buying new grates because former ones couldn’t be cleaned even with the strongest cleaner available in the market.


It is you who makes cleaning BBQ station, especially grates, a tiresome, heavy, and time-consuming job. Every single thing requires maintenance if you want it to work efficiently for years. Same is the case with iron cast grill grates, keep them clean and enjoy smoky flavour for more winters than intended.

The key to removing tags like “tiresome” and “time-consuming” is by giving time for cleaning after every mealtime, and you will never have to spend the whole weekend on the cleaning task.

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