1. Keeping the contents clean, fresh, and safe for the intended shelf life is a primary function. 2. Small items are typically grouped together in one package for reasons of efficiency. 3. Packages can be made with improved tamper resistance to deter tampering and also can have tamper-evident features to help indicate tampering. 4. In the UK, A Local Government Association survey produced by the British Market Research Bureau, compared a range of outlets to buy 29 common food items, found that small local retailers and market traders "produced less packaging and more that could be recycled than the larger supermarkets." 5. Packages can have features which add convenience in distribution, handling, stacking, display, sale, opening, reclosing, use, and reuse. 6. The food enclosed in the package may require protection from, among other things, shock, vibration, compression, temperature, etc. 7. Some types of information are required by governments. 8. There are also special containers that combine different technologies for maximum durability.
Retell the text using as many words from active vocabulary as possible.