A glossary hub gives you a quick route through the GCSE Food Tech Key Words used in AQA Food Preparation and Nutrition and WJEC Level 1/2 Hospitality and Catering. Use this guide when you meet an unfamiliar word in a lesson, practical log, written answer or revision resource. Each explanation is short, but it also shows how the term connects to real food preparation. Select the more detailed key-term articles in this cluster when you need an example, process or exam-style application. Always check your own course specification and current official guidance, because content and advice can change.
How to use this glossary hub
Do not try to memorise a list of definitions without understanding them. For each GCSE Food Tech Key Word, learn three things:
- what the term means;
- why it matters in food preparation, nutrition or hospitality;
- how you could apply it to a named food or practical situation.
For example, if you learn gelatinisation, connect it to making a sauce with flour or cornflour. In an exam, an applied explanation is usually more useful than a definition on its own.
Food science and preparation terms
Aeration
Aeration means incorporating air into a mixture. This can happen by whisking, beating, creaming or sieving. Air bubbles can help a cake or whisked dessert become lighter. The method, ingredients and amount of mixing affect the final texture.
Caramelisation
Caramelisation is the browning and flavour development that happens when sugars are heated. It can occur when sugar is heated in a dessert or when the natural sugars in some vegetables brown during cooking. It is different from the browning caused by the Maillard reaction.
Coagulation
Coagulation is the setting or thickening of a protein when it is heated or otherwise changed. Egg proteins coagulate as an omelette cooks, changing from a liquid to a firmer structure. Overheating can produce an unpleasant texture, so control of time and temperature matters.
Dextrinisation
Dextrinisation is the browning of starch when it is heated. It helps produce the colour, flavour and crisp surface of toast. The degree of browning depends on the food, heat and cooking time.
Emulsification
Emulsification is the process of combining two liquids that do not normally mix, such as oil and water. An emulsion is the resulting mixture. Mayonnaise is an example. Egg yolk can help stabilise the mixture, while careful whisking helps disperse small droplets of oil through the watery part.
Enzymic browning
Enzymic browning is a chemical change that causes cut fruit or vegetables to turn brown when exposed to oxygen. It can affect appearance and quality. Limiting exposure to air, using an acidic ingredient or following suitable storage advice can help reduce it. The best method depends on the food and the intended use.
Fermentation
Fermentation is a process in which microorganisms, such as yeast, change sugars into other substances. In bread making, yeast produces carbon dioxide, which helps dough rise, along with other substances that contribute to flavour. Fermentation needs suitable conditions and time.
Gelatinisation
Gelatinisation happens when starch is heated with liquid. The starch granules absorb liquid and swell, thickening the mixture. This is important when making a roux sauce, custard or a sauce thickened with cornflour. Stirring helps produce a smooth result and prevents lumps.
Gluten formation
Gluten is a protein network formed when certain cereal flours are mixed with liquid and worked. Kneading develops the network in bread dough, helping it hold the gas produced by yeast. Too little development can give a dense loaf, while the correct method supports a suitable texture.
Maillard reaction
The Maillard reaction is a group of chemical reactions between amino acids and reducing sugars during heating. It contributes to the colour, aroma and flavour of foods such as browned bread, roasted foods and cooked meat. It is not the same as caramelisation, which involves sugars.
Shortening
Shortening is the effect of fat on gluten development. Fat coats flour particles and can limit the formation of a strong gluten network. This helps create a tender or crumbly texture in foods such as pastry. The rubbing-in method is one way of distributing fat through flour.
Raising agents
Raising agents help a mixture increase in volume. Biological raising agents include yeast. Chemical raising agents include baking powder and bicarbonate of soda, which produce gas in suitable conditions. Mechanical raising uses air incorporated by whisking or creaming. Choosing the correct agent and method affects texture and appearance.
Nutrition GCSE Food Tech Key Words
Balanced diet
A balanced diet provides the range and amount of nutrients needed for health and normal body function. It should include variety rather than relying heavily on one food or food group. When planning a dish, consider its ingredients, portion, cooking method and how it fits with the rest of the meal.
Dietary needs
Dietary needs are the nutritional or ingredient requirements of an individual or group. They may relate to age, health, activity, culture, religion, ethics, allergies or intolerances. A suitable dish must meet the stated need without creating a safety risk.
Energy
Energy is needed for body processes and physical activity. Food provides energy from nutrients, including carbohydrate, fat and protein. The amount needed varies between people. In an answer, avoid assuming that one fixed diet suits everyone.
Fibre
Fibre is found in plant foods and is important for a healthy digestive system. Sources include vegetables, fruit, pulses and wholegrain foods. When developing a product, increasing fibre may involve selecting suitable ingredients while still considering texture, flavour and consumer acceptance.
Macronutrients
Macronutrients are nutrients needed in relatively large amounts. The main macronutrients studied in food courses are carbohydrate, protein and fat. They have different roles in the body and different functional effects in recipes.
Micronutrients
Micronutrients are vitamins and minerals needed in smaller amounts. They support many body processes. A varied diet helps provide them, but the role of a particular micronutrient should be explained accurately rather than described as a general cure or guarantee of health.
Nutrients
Nutrients are substances in food that the body needs. Common groups studied include carbohydrate, protein, fat, vitamins, minerals, fibre and water. Some terms describe a group, while others describe a specific nutrient, so read the question carefully.
Protein complementation
Protein complementation means combining plant sources of protein so that the overall meal provides a more useful balance of amino acids. Examples include combining pulses with cereals. The ingredients also contribute flavour, texture and other nutrients.
Special diets
A special diet is planned to meet a particular requirement. Examples may include vegetarian, vegan, religious, ethical, medical or allergy-related diets. These categories are not interchangeable. For instance, a preference, an intolerance and an allergy have different implications for product planning and safety.
Food safety and consumer GCSE Food Tech Key Words
Allergen
An allergen is a substance that can cause an allergic reaction in some people. Food businesses must manage allergen information carefully. When planning or preparing food, identify ingredients, prevent unintended contact and communicate information accurately. Allergen legislation and official guidance can change, so use the current Food Standards Agency and GOV.UK advice where required.
Cross-contamination
Cross-contamination is the unintended transfer of harmful microorganisms, allergens or other unwanted substances from one food, surface, utensil or person to another. Separating tasks, washing hands correctly, cleaning equipment and using suitable storage practices can reduce the risk. In an exam answer, name the hazard and the control measure.
Food hygiene
Food hygiene covers the practices used to keep food safe and suitable to eat. It includes personal hygiene, cleaning, safe handling, storage, cooking and preventing cross-contamination. Good hygiene is required throughout a practical task, not just at the end.
Food poisoning
Food poisoning is illness caused by consuming food contaminated with harmful microorganisms or their toxins, or by other harmful substances. Symptoms and causes can vary. For school work, focus on identifying hazards and explaining sensible controls rather than diagnosing illness.
Hazard
A hazard is something that could cause harm. In food preparation, hazards may be biological, chemical, physical or allergenic. A broken piece of packaging is a physical hazard; a cleaning chemical is a chemical hazard. The control should match the hazard identified.
High-risk food
High-risk food is food that can support the growth of harmful microorganisms or is ready to eat and will not receive further cooking. Examples can include some cooked foods and foods containing meat, fish, eggs or dairy. Follow your school procedures and current official food-safety guidance rather than relying on a memorised temperature.
Personal hygiene
Personal hygiene means keeping yourself clean and following safe practices when handling food. It includes suitable clothing, clean hands, covering cuts and following instructions about illness. It protects the food, the consumer and the wider working environment.
Risk assessment
A risk assessment identifies hazards, considers who could be harmed and explains how the risk will be controlled. In a practical lesson, hazards may include sharp equipment, heat, spills, allergens or unsafe handling. A useful assessment is specific to the task rather than a generic list.
Food choice, production and sustainability GCSE Food Tech Key Words
Convenience food
Convenience food has been partly or fully prepared to save time or effort for the consumer. It may be chilled, frozen, dried, canned or ready to eat. When evaluating it, consider cost, time, packaging, nutritional value, sensory qualities and the amount of preparation required.
Food miles
Food miles describe the distance food travels from where it is produced to where it is used or sold. They can be one factor in discussing environmental impact, but they do not provide a complete assessment on their own. Transport method, production, storage, packaging and waste may also matter.
Food provenance
Food provenance means where food comes from and how it has been produced. It can include the origin of ingredients, farming methods and supply-chain information. Provenance may influence consumer choice, quality, ethics, sustainability and traceability.
Food processing
Food processing is the change made to food between its raw state and the form in which it is eaten. Washing, chopping, cooking, freezing, drying and fermenting are examples. Processing can improve convenience, safety, shelf life or sensory quality, although the effect depends on the process.
Functional properties
Functional properties are the ways ingredients behave during preparation, cooking and storage. Examples include flour forming gluten, starch thickening a sauce, egg helping an emulsion and fat shortening pastry. Understanding these properties helps you choose ingredients and methods for a planned result.
Primary processing
Primary processing changes a raw agricultural product into a usable food ingredient. Examples include milling grain into flour or pressing fruit to make juice. It usually happens before more complex product manufacture.
Secondary processing
Secondary processing uses ingredients produced through primary processing to make a food product. Baking bread from flour, making yoghurt from milk or producing a filled pastry are examples. The processes selected affect quality, cost, safety and consumer appeal.
Seasonality
Seasonality refers to the time of year when a food is naturally available or at its best in a particular place. Choosing seasonal ingredients can influence flavour, availability and cost. Do not assume that every food is local or seasonal simply because it is sold at a particular time.
Sustainability
Sustainability means considering how food choices affect resources, people and the environment over time. Product decisions may involve ingredients, farming, energy, packaging, transport and waste. A strong evaluation recognises advantages and limitations instead of claiming that one choice is always sustainable.
Sensory evaluation and product development GCSE Food Tech Key Words
Consumer
A consumer is the person or group for whom a product is made or who may buy and eat it. Age, lifestyle, culture, dietary needs, budget and preferences can all affect product design. A product should be judged against its intended consumer.
Evaluation
Evaluation is the process of judging how well a product or method met its aims. Use evidence, such as appearance, texture, flavour, nutritional suitability, cost, safety or feedback. Evaluation should identify strengths and realistic improvements.
Market research
Market research gathers information about consumers, existing products and possible gaps in the market. It may involve questionnaires, interviews, product comparisons or research into trends. The method should produce information that helps inform a design decision.
Organoleptic testing
Organoleptic testing uses the senses to assess food. Appearance, aroma, flavour, texture and sound can all provide useful evidence. Testing should use clear criteria and consistent descriptions, rather than vague comments such as “nice” or “good”.
Quality control
Quality control is checking that a food product meets the required standard. Checks may cover size, shape, colour, texture, flavour, portioning, packaging and safety. Comparing the finished product with a specification makes the judgement more objective.
Target market
A target market is the particular group of consumers a product is designed for. A target market is more precise than “everyone”. A product for busy families, younger consumers or people following a specific diet would need different ingredients, packaging and marketing decisions.
Specification
A specification is a clear list of requirements that a product must meet. It may include the target consumer, ingredients, nutritional aims, size, appearance, sensory qualities, cost, equipment, safety and environmental considerations. Use it to guide planning and evaluation.
Official specification and guidance
This hub is intended to support revision across the stated WJEC Level 1/2 Hospitality and Catering and AQA GCSE Food Preparation and Nutrition areas. Check the specification used by your school for the precise required content:
Food-safety, allergen, healthy-eating and assessment guidance can change. For current advice, use the relevant official WJEC, AQA, Food Standards Agency, NHS or GOV.UK source, as directed by your teacher.
Exam-ready summary
Before an assessment or practical task, retrieve these points without looking at your notes:
- Can you define the term accurately in one sentence?
- Can you apply it to a named ingredient, dish or practical method?
- Can you explain the effect on texture, appearance, flavour, nutrition or safety?
- Can you distinguish similar terms, such as caramelisation and the Maillard reaction?
- Can you identify a relevant hazard and a suitable control measure?
- Can you link a product decision to its target consumer and specification?
- Can you evaluate a result using specific sensory or nutritional evidence?
For further revision, use the supporting articles on food science terms, nutrition key terms, food safety vocabulary, sustainability terms and sensory evaluation terms in the Key Terms cluster when they are available on your course site.
Frequently asked questions
Do I need to learn every definition word for word?
You need accurate understanding, but you do not have to copy one exact sentence. Learn the essential meaning and practise applying it to a food or situation.
How can I improve a definition in an exam?
Add a relevant example or consequence. For instance, explain that gelatinisation thickens a sauce when starch is heated with liquid, rather than writing only “starch gets thicker”.
Are the WJEC and AQA key terms exactly the same?
There is considerable overlap, but the specifications and required emphasis are not identical. Use this glossary as a revision starting point and check your exam board’s current specification and teacher guidance.
