What's the Difference Between a Wok and a Karahi?

What Is a Wok?

A wok is a round-bottomed or flat-bottomed cooking vessel originating from China, with high, sloping sides that curve outward from a narrow base. The shape is functional as it concentrates the hottest temperature at the base while the sloping sides provide a cooler area to push food as it cooks, allowing the chef to control the cooking of multiple ingredients at different speeds.

Woks are designed for high-heat cooking. Stir-frying is the technique most associated with them, but they are equally capable of deep-frying, steaming, braising, and smoking. The key is speed and heat. A wok over a high-flame commercial burner produces the smoky, slightly charred flavour that the Chinese call wok hei, meaning "breath of the wok." This quality is impossible to achieve with a conventional frying pan.

In commercial kitchens serving East Asian cuisine, the wok is the central piece of cooking equipment around which everything else is organised. Speed of service, volume, and flavour are all dependent on it.

What Is a Karahi?

A karahi (also spelled kadai, kadhai, or karahi) is a deep, round cooking pot that originated in the Indian subcontinent. It shares some visual similarities with a wok, both are round with sloping sides, but the similarities are mostly superficial. The cooking karahi has a deeper, more hemispherical shape than a wok, with a smaller base and a more pronounced curve. It is built for slower, more intense cooking rather than the rapid stir-frying associated with a wok.

Indian karahis are one of the most important pieces of Indian cookware. They are used for cooking curries, dals, and rich, slow-reduced dishes, as well as for deep-frying pakoras, bhajis, and other treats. In fact, some of the most well-known dishes in Indian and Pakistani cuisine are named after the vessel they are cooked in: Chicken Karahi, Gosht Karahi, Prawn Karahi. The karahi is not just a piece of equipment, it is part of the identity of those dishes.

Karahis are also commonly used as serving vessels. In many South Asian restaurants, food is brought to the table in the karahi it was cooked in, placed on a wooden or cast iron trivet, which keeps it hot throughout the meal.

Carbon Steel Wok

Carbon steel is the traditional and most widely respected material for a wok. It heats up quickly, handles extremely high temperatures well, and, once properly seasoned, develops a natural non-stick patina that adds depth of flavour to everything cooked in it.

The Kitchen Craft Pure Oriental Carbon Steel Plain Steel Wok 30cm is an uncoated carbon steel wok suited to all heat sources including induction. It is made without a non-stick coating, which means it requires seasoning before first use, but over time it develops its own non-stick surface that produces the authentic smoky wok hei flavour associated with the best Chinese cooking.

For those who want the performance of carbon steel with a non-stick coating for easier maintenance, the Kitchen Craft Pure Oriental Carbon Steel Non Stick Wok 30cm is heavy-gauge carbon steel with a long-lasting non-stick surface. Suitable for all hobs including induction and dishwasher safe.

Steel Wok

Steel woks are a practical choice for high-volume commercial kitchens where durability and ease of cleaning are the priority. They do not require seasoning, are resistant to rust and staining, and handle the demands of continuous commercial use well.

The Oriental Wok Pan with Wooden Handle 13" is a professional-grade commercial wok with a 13” diameter, built for restaurant and catering use where cooking large quantities in a single batch is essential.

Non Stick Wok with Lid

For kitchens looking for a versatile, easy-to-use wok that covers stir-frying, steaming, and deep-frying in one pan, a non-stick wok is the most practical option.

The Royal Cuisine Non Stick Wok Pan 30cm with Lid is an aluminium non stick wok compatible with induction, gas, and electric hobs. The glass vented lid makes it suitable for steaming vegetables as well as stir-frying, and the two-handle design gives good control when moving the pan. The Aluminium Non Stick Wok and Lid 24cm is a more compact version suited to smaller portions or home kitchen use.

Black Iron Karahi

Black iron is the traditional material for a karahi and the one that most closely replicates the experience of cooking in a karahi the way it has been done for centuries. It retains heat exceptionally well, builds up a seasoned surface over time, and gives a depth of flavour to curries and reduced dishes that other materials struggle to replicate.

Cooksmill stocks flat base, round, and oval black iron karahis in a wide range of sizes, from small portions to large commercial catering vessels. The Flat Base Black Iron Karahi range is suited to a wide range of dishes including curry, jalebi, and deep-fried items. The flat base heats up quickly and stays hot in the centre, which is exactly what you need for the high-heat finishing and reduction that characterises karahi cooking.

Black iron karahis require seasoning before first use and should be hand washed and dried thoroughly after each use to prevent rust.

Stainless Steel Karahi

Stainless steel karahis are the lower-maintenance option, they can be washed in a dishwasher, require no seasoning, and are suitable for kitchens where storage and cleaning time are a constraint.

Cooksmill stocks the Stainless Steel Indian Karahi range in multiple sizes. While they do not develop the seasoned flavour patina of black iron, they are durable, hygienic, and well suited to the pace of a busy commercial kitchen.

Aluminium Karahi with Lid

For kitchens that want the karahi format with the convenience of a lid, useful for dishes that need to be covered during cooking or for keeping food hot during service, the Super Wok Aluminium Karahi and Lid No.7 36cm is a 36cm aluminium karahi that comes with a matching lid. The two side handles give good control for moving between the hob and the table.

Which material is best for a commercial kitchen?

There isn't one material that is best for every commercial kitchen. Black iron is the traditional choice and retains heat well, while developing a seasoned surface with regular use. It is particularly suited to kitchens that want traditional cooking performance and don't mind the additional maintenance.

Stainless steel is the lower-maintenance alternative. It doesn't require seasoning, can be dishwasher-washed, and is durable enough for busy commercial kitchens.

Aluminium is another option where a lighter vessel and a lid are useful. Cooksmill's aluminium karahi with lid, for example, is designed for cooking and keeping food covered during service.

For a traditional cooking experience, choose black iron; for easier cleaning and lower maintenance, stainless steel is usually the more practical commercial option.

Which is easier to clean during service?

Stainless steel is generally the easier option for a busy kitchen. Unlike carbon steel, it doesn't require seasoning and doesn't need the same level of care to prevent rust.

Carbon steel and black iron cookware require more maintenance because the seasoned surface needs to be protected. They should be cleaned appropriately, dried thoroughly and maintained with a light coating of oil.

If speed and simplicity between services are your priorities, stainless steel is the lower-maintenance choice.

How do you season a wok? Here is the process step by step:

1. Initial wash: wash the wok thoroughly with soap and warm water to remove any factory coating or protective oil from manufacturing. This is the only time you will use soap on a carbon steel wok.
2. Dry completely: dry the wok with a cloth, then place it on the hob over a low heat to drive off any remaining moisture. Residual water causes rust.
3. Apply oil: using a folded piece of kitchen paper, apply a very thin layer of a high smoke-point oil, like vegetable, sunflower, or flaxseed, to all interior surfaces.
4. Heat: increase the heat to medium-high and heat the wok until it starts to smoke. The oil will polymerise and bond to the metal surface.
5. Cool and repeat: allow the wok to cool, wipe away any excess oil, and repeat the oiling and heating process two or three more times. Each layer builds the seasoning.
6. Store dry: once seasoned, store the wok in a dry place. If storing for a long period, wipe a thin layer of oil over the surface before putting it away.

How to Season a Black Iron Karahi

The seasoning process for a black iron karahi is similar to a carbon steel wok but slightly simpler due to the more robust construction:

1. Remove factory coating: wash thoroughly with warm soapy water to remove any protective coating applied during manufacturing.
2. Dry completely: dry with a cloth and then heat on the hob to remove all moisture.
3. Apply oil: wipe a thin layer of oil over the interior with a clean cloth.
4. Burn the oil off: heat on the hob on high until the oil smokes and burns off. This opens the pores of the iron and begins the seasoning process.
5. Repeat: repeat the oiling and heating process two or three times.

After seasoning, clean the karahi by rinsing with hot water and drying immediately. Never soak a black iron karahi in water or leave it wet as it will rust.

Which Do You Need: Wok or Karahi?

The honest answer is that most Indian and South Asian restaurant kitchens need both as they serve different purposes and are not interchangeable.

• If you are cooking East Asian cuisine, stir-fries, noodle dishes, Chinese-style curries, dim sum, you need a wok.
• If you are cooking Indian or Pakistani cuisine, curries, karahi dishes, biryanis, deep-fried Indian snacks, you need a karahi.
• If you are running a kitchen that covers both, the good news is that both pieces of equipment are relatively inexpensive and neither takes up a huge amount of storage space.

The shape and material you choose within each category depends on your volume, your hob setup, and how much maintenance you want to take on. A seasoned black iron karahi and a carbon steel wok will both reward regular use with better performance over time. A stainless steel karahi and a non-stick aluminium wok require less care and are better suited to kitchens where maintenance time is a constraint.