Yes, glass and metal packaging are appropriate in different use cases and glass is much heavier than either plastic or metal. We're not really trying to find th

Yes, glass and metal packaging are appropriate in different use cases and glass is much heavier than either plastic or metal. We're not really trying to find the one true packaging material right? Some are better than others depending on the context. Glass is pretty amazing material but weight is not where it holds an advantage, nor in tensile strength. Edit: Heck, even steel versus aluminum depends on the situation. Cans of stuff are usually steel still while beverages are almost always aluminum.