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Have you ever thought about that what why use glass bottles and cans to store our beer when plastic is cheap can be moulded into practically any shape and is easily recyclable.
Well, perhaps the answer that’s most pertinent to us as customers is that putting beer into plastic bottles can affect how it tastes. Plastic is a great deal more porous than glass. In lay terms, this means your beer will go flat sooner in a plastic bottle than it would in a glass one because the carbon dioxide that makes it fizzy in the first place can more easily escape.
The other benefit of glass is that it is almost completely taste neutral which basically means that it doesn’t chemically interact with what you store inside of it.
Plastic, on the other hand, is chock-full of chemicals that could potentially leech into your drink and ruin your beer and possibly more.. When stored at room temperature or less, the amount of antimony that leaches is generally deemed safe, but as temperatures increase, so does the antimony levels in your drink.
When stored in an uninsulated garage for a few months in the summer or other warm areas, the levels can exceed the recommended limits set by the Environmental Protection Agency.
The other reason glass, or more specifically coloured glass, is often used to house beer is because it helps protect the beer from the sun’s rays. While it is possible to create plastic that is the same colour, this has the potential to wreak havoc with the established plastic recycling initiatives already in place.
The amber colour of plastic beer bottles combined with the additional layers needed to protect the beer inside make them more difficult to recycle than the clear plastic bottles favoured by the soft drink industry.
A further issue with plastic bottles is that they simply can’t stand up to the pasteurisation process most beers undergo.
While there are indeed beer manufacturers out there who are looking for ways to make widespread use of plastic beer bottles a reality (and convince the wider public to accept the switch), at this particular point in time glass and aluminium cans are still king in this arena.