--- title: "Processing, Packaging and Food Miles" description: "Processing, packaging and transport affect a food's price, shelf life and environmental impact. Food miles measure distance, not the whole impact. Ultra-processed describes a classification based on i" canonical: https://lightmysky.com/learn/design-and-technology/processing-packaging-and-food-miles-mt_MOrYB3f7qg source: https://lightmysky.com/learn/design-and-technology/processing-packaging-and-food-miles-mt_MOrYB3f7qg.md retrieved: 2026-11-12 --- > **Agent view.** This is the Markdown twin of the page, for tools and assistants. > When to use this site, and the call that answers each job: https://lightmysky.com/agent-instructions.md > API description (OpenAPI 3.1): https://lightmysky.com/openapi.json · Authentication: https://lightmysky.com/auth.md > Pricing: https://lightmysky.com/pricing.md · Catalog: https://lightmysky.com/llms.txt · Full catalog: https://lightmysky.com/llms-full.txt > Every machine-readable file on this domain: https://lightmysky.com/.well-known/ai-catalog.json > Ask for Markdown with `Accept: text/markdown`, a `.md` address, or `?mode=agent`. # Processing, Packaging and Food Miles Processing, packaging and transport affect a food's price, shelf life and environmental impact. Food miles measure distance, not the whole impact. Ultra-processed describes a classification based on ingredients and processing, not taste alone. Subject: Design & Technology · Area: Food & Cooking · Ages 15 to 16 Page: https://lightmysky.com/learn/design-and-technology/processing-packaging-and-food-miles-mt_MOrYB3f7qg ## Ready when they can - Trace one product from raw ingredient to shelf and name each step that was added - Say what packaging is actually doing besides looking good, such as extending shelf life - Explain why food miles alone is a poor measure of environmental cost - Give one way large-scale processing can lower unit cost and one possible drawback to check on a product's nutrition label ## Lesson: What happens between field and shelf You compared unit prices and food waste. Now trace textured vegetable protein (TVP), a soy ingredient used in place of minced meat. In one common route, soybeans are grown and harvested, and much of their oil is removed to make soy flour. The flour is mixed with water, heated under pressure and pushed through a shaped opening. This process is called extrusion. The pieces are then dried, packed and transported to shops. *(drawing: Oil removal and milling make the flour. Extrusion uses water, heat, pressure and shaping. Drying comes next, then packing and transport.)* Packaging protects food during storage and transport. Its material and seal can limit air, moisture or light. Air can react with oils and cause rancidity, changing their smell and flavour. Grinding flaxseed exposes more of its oil to air. A suitable air barrier can slow this reaction, but it does not stop every cause of spoilage. Follow storage instructions before and after opening; a sealed pack alone does not prove food is safe. *(drawing: For an oil that reacts with air, a suitable intact barrier can slow oxidation. Temperature and storage instructions still matter.)* Food miles measure how far food travels. They leave out transport method: travelling by air can have a different impact from travelling by ship. Farming, processing, cooling, packaging and food waste also affect total environmental impact. A local label cannot rank products on its own. Compare the same amount of food and use information about the whole route. Large batches can lower the cost of making each portion. That saving does not guarantee a low shop price, since processing and packaging also cost money. A low price tells you little about a food's salt or added sugar. Read its nutrition label. As in meal budgeting, compare unit prices and the amount you will eat before it spoils. Processing includes grinding, cooking and drying. In the NOVA classification, ultra-processed foods are industrial formulations, often with ingredients rarely used in home cooking and additives for flavour, colour or texture. The category depends on ingredients and the type and purpose of processing. Factory packing alone does not put a food in it. Taste, price and distance travelled cannot settle the classification. **Recap.** Processing, packaging, and transport shape price, shelf life, and cost beyond the till. *Original lesson, questions and flashcards written for this dataset about food processing, packaging and transport.* ## Practice 8 questions on this page, each with its working shown. ## Needs first - [Feeding Yourself on a Budget](https://lightmysky.com/learn/design-and-technology/feeding-yourself-on-a-budget-mt_C1XoXVJlgA) ## Optional connections - [Where Food Comes From](https://lightmysky.com/learn/design-and-technology/where-food-comes-from-mt_HTJsTS1XzU)