How to Clean and Season Cast Iron at the Sink

A short routine for everyday cast-iron care: wash, dry completely, and wipe on a thin film of oil.

By OnMyKitchen · 3 min read

How to Clean and Season Cast Iron at the Sink — kitchen technique guide — **How to Clean and Season Cast Iron at the Sink:** A summary of standard cooking technique (read the editorial policy).

1. Mild Dish Soap and Seasoning

The old warning against soap on cast iron dates from when household soaps contained lye, which can break down seasoning. Modern liquid dish soap is a mild detergent, and a quick wash is generally considered fine for a well-seasoned pan.

Leaving cooking oil and food residue in an unwashed pan can leave sticky or rancid spots, so a short wash with warm soapy water helps keep the surface clean.

2. Dry Completely, Then Oil Thinly

Water is the main enemy of bare cast iron, because it causes rust. Even after a towel wipe, the iron can hold moisture.

Set the wiped skillet back on a warm burner for a minute or so until every trace of moisture is gone. Turn off the heat, add about 1/2 teaspoon of a neutral oil such as canola, grapeseed, or avocado oil, and buff it with a folded paper towel as if you were trying to wipe it all off. A very thin film bakes into the seasoning the next time the pan is heated.

Recipes That Use This Technique

**Crispy Cast-Iron Garlic Herb Chicken Thighs** 35 mins · Bone-in chicken thighs start skin-side down in an unheated 12-inch cast-iron skillet so the fat under the skin renders slowly for 14 minutes, then finish in smashed garlic, butter, and roasted lemon pan jus.

**15-Minute Honey-Soy Glazed Crispy Egg Rice Bowl** 15 mins · Two eggs fried in shimmering oil until the whites blister into lacy brown edges while the yolks stay soft, served over warm jasmine rice with wilted garlic-honey-soy spinach.

Cookware Mentioned in This Guide

Lodge 12-Inch Seasoned Cast-Iron Skillet — A pre-seasoned 12-inch cast-iron skillet with a helper handle. It has enough floor space to cook four bone-in chicken thighs without crowding.

More Kitchen Technique Guides

**Cold-Pan Cast-Iron Searing Guide: Why Starting Unheated Can Beat a Smoking-Hot Pan** For fatty, skin-on cuts like chicken thighs and duck breast, starting in an unheated skillet lets the fat render before the skin burns.

**Dutch Oven vs Cast-Iron Skillet: Which Pan Should You Reach For?** Bare cast iron suits dry, high-heat cooking. An enameled Dutch oven suits acidic simmers, covered braises, and bread.

**How to Emulsify Pasta and Pan Sauces: Take the Pan Off the Heat** Starchy pasta water, cold butter, and finely grated cheese turn into a glossy sauce when the pan is taken off the burner first.