What to do after each use of cast iron?

Author: Payton Labadie  |  Last update: Thursday, September 11, 2025

Rinse your skillet after use After your cast iron has cooled down a little bit (you don't want to burn your hands!), rinse your cast iron in the sink with warm—never cold—water to dislodge clingy food scraps like eggs, and prevent them from hardening and sticking to the pan.

Why does my cast iron skillet rust after each use?

You're absolutely right that moisture is one of the biggest enemies of cast iron. Even a small amount of moisture left on the surface of the skillet can cause rust to form over time. It's important to dry your skillet thoroughly after each use, especially if you're going to be storing it for any length of time.

How many times should you season cast iron?

It can be beneficial to season your cast iron in the oven a few times a year. We recommend oven-seasoning when restoring a rusty cast iron pan. Follow our easy steps to season cast iron in the oven and download our Seasoning Guide to add a quick go-to reference to your cookbook.

When should I stop using cast iron?

The more you use a rusted pan, the more iron you'll consume in your food. It's best to avoid cooking with a rusty cast iron pan. If it's reached the point of corrosion or deep rust, throw it away rather than risk your and your family's health.

Does cast iron need to be washed immediately?

Start the process soon after cooking to prevent any food remnants from getting stuck as the pan cools. While your pan is still warm, take it to the sink and wash it with a drop of dish soap. (Yes, despite popular belief, a little soap is fine if you remember to re-season your cast-iron skillet as needed.

Do You Have To Season A Cast Iron Skillet After Every Use?

What to do after cooking with cast iron reddit?

Unless you are doing something like deep frying or toasting bread, or cooking fatty meat to season, you should wash with soap after use. If you wash lightly there isn't any risk of damage. I wouldn't use a steel wool or chainmail for that, I just use an abrasive sponge (this specifically).

Is it OK to use cast iron everyday?

Yes, it is safe to use and cook on cast iron cookware. The many benefits of cast iron cookware are that it is easy to clean and maintain.

What should not be cooked in cast iron?

What to Avoid Cooking in Cast Iron
  1. Highly Acidic Foods (Like Tomatoes) Over time, cooking with oils and fats continues to build a pan's seasoning; cooking with acidic foods can erode that seasoning. ...
  2. Delicate Fish. ...
  3. Eggs.

Is tomato sauce ok in cast iron?

The takeaway? It's safe to cook tomato- and wine-based sauces in cast iron, but you should save the vinegary pan sauces for stainless-steel pans—or dilute the vinegar (or citrus) with water or stock.

How do I know if my cast iron is seasoned enough?

For long-term care, it is best practice to oil an iron skillet after each use. A well-seasoned skillet has a distinct look to it. It is noticeably dark with a shiny, semi-gloss finish. Of course, if you rarely use your cast-iron skillet, oiling it only two to three times a year will work.

What is the best oil to season cast iron?

When selecting a seasoning oil, you want one that's high in polyunsaturated fats and has a high ratio of polyunsaturated fat to monounsaturated fat. Among common cooking oils, grapeseed oil and sunflower oil stand out for their high polyunsaturated fat content and desirable ratio of polyunsaturated to saturated fat.

Can you heat cast iron too much?

A well-seasoned cast iron skillet can help you achieve flavorful dishes, but if the skillet reaches extremely high temperatures — generally around 800 degrees Fahrenheit — all of that seasoning can burn off. This is the most common damage cast iron pans sustain.

Is a little rust on cast iron ok?

Cooking with a cast iron pan that has a little bit of surface rust on it isn't likely to hurt you. If your pan is seriously rusty or has visible rust flakes, you shouldn't cook with it until the rust is removed and the pan is washed and re-seasoned.

When I wipe my cast iron, it's black.?

They are most likely carbon deposits. This happens due to overheating of fats and oils. Using an oil with a low smoke point will carbonize at high temperatures and cause residue from the pores of your pan to rub off onto your food. While unappealing, they won't hurt you in such a small amount.

Does coke remove rust from cast iron?

Yes, Coke contains phosphoric acid which helps remove rust from cast iron. Pour Coke on the rusted area and wait 15 to 20 minutes for the acid to break down the rust. Then wipe the pan with a scrubby sponge or dish towel. Repeat this process until the rust is completely gone.

Why can't you cook eggs in cast iron?

Eggs fall into the category of sticky foods that are not ideal for cast iron skillets that haven't built up their seasoning yet. While cast iron can become non-stick with sufficient use over time, a newer skillet will almost certainly cause your eggs to stick to its porous surface.

What is the lifespan of a cast iron skillet?

With proper care cast iron cookware can withstand a lifetime of use. Actually several lifetimes as these cast iron pans and dutch ovens are often passed down from generation to generation. Taking care of cast iron cookware is as easy as 1 – 2 – 3.

Do onions ruin cast iron?

Doesn't. You can do almost nothing to hurt a cast-iron pan itself. It can destroy your seasoning, though, and require you to "fix" it by thoroughly cleaning and re-seasoning it.

What is the main disadvantage of cast iron?

The disadvantages of cast iron

One of the main drawbacks of cast iron pans is their weight. Cast iron is significantly heavier than other types of cookware, which can make handling and maneuvering them more challenging, especially for individuals with physical limitations.

What is the healthiest cookware to use?

“Glass, like Pyrex cookware, is a safe option,” Perko said. “Cast iron is a safe option if NOT frying or using high-temperature cooking. If you have or can use or purchase stainless steel pots and pans, they are healthier choices for long-term/lifetime use.”

How sanitary is cast iron?

From a food-safety standpoint, the surface of a cast iron pan during cooking easily reaches upwards of 300 degrees, which is high enough to kill any bacteria that don't get washed away. You will not get sick from maintaining your pan this way.

What to do with cast iron after each use?

After I've finished cooking, if I can clean the pan without a little bit of dish soap, I will. To clean the cast iron skillet, rinse it first under hot water to remove any excess food or residue. Then, use a wet, clean paper towel to wipe out the inside of the pan until it's fully clean. Easy enough!

Why can't you wash cast iron with soap?

Decades ago, soaps were made with lye and vinegar, and they were too harsh for use on cast iron pans. They would indeed strip away oil and could remove seasoning. But today's soaps, especially ones that are made with eco-friendly solutions, are often too mild to remove seasoning.

What's the best oil to season cast iron?

All cooking oils and fats can be used for seasoning cast iron, but based on availability, affordability, effectiveness, and having a high smoke point, Lodge recommends vegetable oil, melted shortening, or canola oil, like our Seasoning Spray.

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