Your Guide to Japanese Carbon Steel Cookware Care

Quick Start · Seasoning · When is the Pan Ready? · Daily Care · The Patina · Troubleshooting · Restoration Service

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 non-stick properties over time through your cooking and oiling routine.

The reward is a durable, renewable, natural non-stick surface that is built to last. Even a badly neglected pan can be sanded back and re-seasoned — see our In-Store Restoration Service.

The 3 Keys to Success

Hot pan + hot oil + food → non-stick results

Properly preheating on medium heat is the secret to non-stick cooking.

Wash + dry + oil → a healthy pan

Your simple three-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.

Quick Start: From Box to First Meal

Day 1 — season the pan

Complete the First-Time Seasoning below. It takes about five minutes.

Your first few cooks

Start with dishes that build seasoning quickly — stir-fried vegetables, fried rice, or pan-fried meat with a generous amount of oil.

Hold off for now

Eggs, delicate fish, long boiling or steaming, and acidic dishes (tomato, vinegar) are much easier once the seasoning has developed. Save these for the second or third week.

The first two weeks

Expect the surface to darken unevenly and develop marks. This is the patina forming — a sign of progress, not damage.

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

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:

When is the Pan Ready? Watch the Oil

Most sticking happens because food goes in before the pan is ready. You do not need a thermometer — the oil tells you everything:

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.

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 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."

The pan was not hot enough before the food went in. Follow the steps in When is the Pan Ready? — wait for the oil to ripple before adding food, and keep up the "Wash, Dry & Oil" routine. The surface will improve with use.

"My pan has pits or deep surface damage."

This develops when food residue, salt, or moisture is left on the surface. Don't throw the pan away — see our In-Store Restoration Service below.

In-Store Restoration Service

A carbon steel pan can be restored — this is one of its biggest advantages. When a synthetic coating wears out, the pan is finished; carbon steel can be sanded back and re-seasoned to start fresh.

Pitting is not a manufacturing fault. It develops when food residue, salt, or moisture is left on the surface, or when the pan is stored without its protective oil layer. If your pan has developed pits, we can restore it at our Chatswood store: the surface is sanded flat, which exposes the bare silver steel — this is normal, and the dark patina rebuilds with regular use.