What knife skills and cutting techniques must a National 5 cook be able to use, and how is each one done safely?
Understanding and demonstrating a range of knife skills and cutting techniques, including peel, slice, dice, chop and the safe use of a knife, and choosing the right technique for a dish.
An SQA National 5 Practical Cookery answer on knife skills and cutting techniques, covering peeling, slicing, dicing, chopping and shredding, the bridge and claw holds for safe knife use, and how to choose the right cut for a dish.
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What this dot point is asking
The SQA wants you to use a range of knife skills and cutting techniques accurately and safely, and to choose the right cut for a dish. These skills are demonstrated and marked in the practical activity and can be described in the question paper.
The main cutting techniques
These are the cuts a National 5 candidate is expected to know and demonstrate.
Choosing the right cut
The cut is chosen to suit the dish, the cooking method and the look you want.
- Even cooking. Pieces of the same size cook in the same time, so the dish is not part raw and part overcooked. Diced vegetables for a stew, or evenly sliced potatoes for a gratin, cook uniformly.
- Texture and appearance. Finely shredded cabbage gives a delicate coleslaw; thick chunks would be unpleasant. A neat dice looks more professional than a rough chop on a plated dish.
- Speed of cooking. Smaller pieces cook faster, which is why stir-fry vegetables are cut small and thin.
Using a knife safely
Safe knife use is marked directly and is a common exam topic.
Counter-intuitively, a sharp knife is safer than a blunt one: a sharp blade cuts where you aim it with little force, whereas a blunt blade slips and you push harder, so it is more likely to slide off the food and onto your hand.
Common mistakes
Examples in context
Example 1. Prepping for a stir-fry. A candidate slices peppers and shreds cabbage thinly so they cook quickly and evenly in the hot wok, using the claw hold throughout.
Example 2. A neat garnish. For a plated dessert, a candidate finely slices a strawberry into a fan, showing controlled knife skills that lift the presentation.
Try this
Q1. What is the difference between dicing and slicing? [1 mark]
- Cue. Dicing cuts food into small, even cubes; slicing cuts food into thin, even flat pieces.
Q2. Why is a sharp knife safer than a blunt one? [1 mark]
- Cue. A sharp knife cuts with little force where you aim it; a blunt knife slips and you press harder, so it can slide onto your hand.
Exam-style practice questions
Practice questions written in the style of SQA exam questions on this dot point, with worked answer explainers. The year tag is the paper they imitate, not the source.
SQA N5 style4 marksDescribe two knife techniques used in cooking, and for each give a dish where it would be used.Show worked answer →
A 4-mark answer needs two techniques described (up to 2 marks) and a suitable dish for each (up to 2 marks).
Technique 1. Dicing means cutting food into small, even cubes. It is used for the onion, carrot and celery in a soup or a bolognese sauce, where even cubes cook at the same rate and look neat.
Technique 2. Slicing means cutting food into thin, flat pieces of even thickness. It is used for slicing mushrooms for a stir-fry or potatoes for a gratin, where thin even slices cook evenly.
Other techniques that would score include peeling (removing the skin of vegetables or fruit), chopping (cutting roughly into pieces, for example herbs) and shredding (cutting into fine strips, for example cabbage for coleslaw).
Markers reward each technique correctly described and a sensible matching dish. Naming a technique with no description, or a dish that does not use it, loses the mark.
SQA N5 style3 marksExplain how a cook can use a knife safely when cutting vegetables, referring to how the food and the knife are held.Show worked answer →
This question tests safe knife use, so the answer must describe the holds and the safe handling of the knife.
Hold the food with the bridge hold or the claw hold. In the claw hold, the fingertips of the guiding hand are curled under and the knuckles guide the blade, so the fingertips are tucked safely away from the edge.
Use a sharp knife on a stable board (a damp cloth under the board stops it slipping), and keep the blade pointing down and the fingers behind it. Cut with a steady motion, looking at what you are doing.
Carry a knife pointing down at your side, never leave it in a sink of water where it cannot be seen, and put it down on the board, not near the edge of the bench.
Markers reward a correct hold (claw or bridge), keeping fingers clear of the blade, and at least one point on safe knife handling such as a stable board or a sharp knife.
Related dot points
- Understanding and demonstrating a range of food preparation techniques beyond cutting, including whisking, creaming, rubbing-in, folding, kneading, rolling out and blending, and choosing the right technique for a dish.
An SQA National 5 Practical Cookery answer on mixing and combining techniques, covering whisking, creaming, rubbing-in, folding, kneading, rolling out, blending and pureeing, what each technique does to a mixture, and how to choose the right one.
- Understanding and demonstrating knowledge of cross-contamination, its causes, and the methods used to prevent it, including separating raw and ready-to-eat food and using colour-coded equipment.
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- Understanding and demonstrating a range of cooking methods, including boiling, simmering, steaming, poaching, frying, grilling, baking and roasting, what each method does to food, and choosing a suitable and healthy method for a dish.
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- Understanding and demonstrating the organisational skills of a practical, including selecting ingredients and equipment, accurate weighing and measuring, working to a time plan, and presenting and garnishing the finished dish.
An SQA National 5 Practical Cookery answer on the organisational skills of a practical, covering selecting ingredients and equipment, accurate weighing and measuring, working to a time plan, dovetailing tasks, and presenting and garnishing the finished dish.
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An SQA National 5 Practical Cookery answer on the characteristics and functions of ingredients, covering what eggs, flour, fat, sugar, raising agents and liquid each do in a dish, such as binding, aerating, thickening, shortening, sweetening and rising.
Sources & how we know this
- SQA National 5 Practical Cookery Course Specification — SQA (2026)
- BBC Food - Knife skills technique guide — BBC Food (2024)