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Your Guide to Japanese Carbon Steel Cookware Care

Carbon Steel Cookware

The Golden Rule of Carbon Steel

Your carbon steel pan improves with use. Unlike a synthetic pan, it requires a simple routine: always keep it lightly oiled. Seasoning protects the pan from rust and builds a natural, non-stick surface.

How a Carbon Steel Pan is Different

A new carbon steel pan behaves differently than a synthetic non-stick pan:

  • A synthetic pan has a chemical coating that is non-stick on day one but degrades and wears out over time.
  • Your carbon steel pan is the opposite. It starts with a base seasoning and builds its exceptional non-stick properties over time through your cooking and oiling routine.

The reward for this care is a durable, renewable, and natural non-stick surface that is built to last.

The 3 Keys to Success

Hot Pan + Hot Oil + Food → Non-Stick Results

(Properly preheating your pan on medium heat is the secret to non-stick cooking.)


Wash + Dry + Oil → A Healthy Pan

(Your simple 3-step routine after every cook to build seasoning and prevent rust.)


Patience + Cooking → A Perfect Patina

(Your pan gets better with every use, developing a natural non-stick surface.)

Part 2: Step-by-Step Guides

First-Time Seasoning

Season the pan once before first use. This 5-minute process prepares the surface.

  1. Wash: Wash the new pan with warm water and dish soap.
  2. Dry: Dry it completely. To be certain, place it on low heat for one minute.
  3. Oil & Heat: Add enough cooking oil to coat 1/3 of the pan. Heat on low for 5 minutes.
  4. Cool & Coat: Turn off the heat and let the oil cool completely. Once cool, pour the oil into a storage container for reuse. Use a paper towel to wipe the residual oil over the entire inner surface.

A Note on the Video

The video is a great visual guide. Please note these two clarifications:

  • Using Soap: A little mild soap is fine for cleaning. The most important step is to re-oil the pan immediately after drying.
  • Reusing Oil: The seasoning oil can be reused. Let it cool completely, then filter and store it in a container like the Yoshikawa Oil Filter Pot.

After seasoning, your pan should have a light sheen, as shown below:

Before and after oil seasoning of a carbon steel wok

Daily Use & Care

Follow these three simple steps after each use:

  1. Cook: Use your pan on medium heat. If your oil smokes heavily, the pan is too hot. Avoid the 'boost' or max power setting.
  2. Wash: After cooking, wash with hot water and a soft sponge. Do not use a dishwasher. For stuck food, boil water in the pan to loosen it.
  3. Dry & Oil: This is the most important step. Dry the pan immediately. Add a teaspoon of cooking oil and wipe it over the interior with a paper towel to prevent rust.

Part 3: Deeper Knowledge & Troubleshooting

Understanding Your Pan's Evolving Surface

Don't worry about marks appearing on your carbon steel pan; they are supposed to be there. The patterns left by heat, oil, and food are not defects. Rather, they are the start of the pan's natural non-stick surface, known as a patina. A pan that looks well-used is performing at its best.

With every meal, the dark surface of your pan will evolve, creating a unique pattern as layers of seasoning build up. This is not a flaw—it's the visual evidence of a healthy, personalised patina. These layers are what make the pan non-stick, so it is important that you do not try to scrub them away.

Troubleshooting Common Issues

  • "My paper towel turns black."
    This is normal. The residue is a mix of carbon particles and polymerised oil from your seasoning, not dirt.
  • "I have a dark, burnt oil mark that won't scrub off."
    This is a positive sign of polymerised oil and is the beginning of a strong seasoning layer. It is not harmful. Do not try to scrub it off; just continue to cook on it and follow the "Wash, Dry & Oil" routine.
  • "My acidic food turned slightly grey."
    This can happen on new pans as the acid reacts with the iron. It is harmless and will stop once a thick seasoning is established. Read more here.
  • "I see rust."
    Don't worry. It means the oil layer wore off. Simply scrub the rust away, then perform the "First-Time Seasoning" steps again.
  • "My food is still sticking."
    This means you need to focus on the "Hot Pan + Hot Oil" rule before adding food. Also, ensure you continue the "Wash, Dry & Oil" routine. The surface will improve with use.

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