These packaging's must be well constructed with closures that are sufficiently tight to prevent leaking and sifting. Stoppers or corks must be held in position with wire, adhesive tape, or other positive means. What material are these packaging?

• A. Plastic
• B. Glass
• C. Ceramic
• D. Metal

Answer: (B)

The described packing setup is characteristic of glass bottles. When a liquid needs to be transported safely, especially beverages, a stopper or cork often seals the bottle, and a positive restraint such as wire, tape, or a cage is used to hold the cork in place. This prevents leakage and keeps the closure secure during handling and changes in pressure. Glass provides a rigid, leak-tight container when corked, and the additional securing method is a common requirement to ensure the cork cannot loosen. Plastic, ceramic, and metal packaging typically use different closures (caps, lids, threads) and do not rely on corks held with wire, so they don’t fit this description as well.