Cans or Bottles – Which One Is Best?

by Nick Livermore

If you are like me, you are tired of reading how the trend in the beer industry is moving towards cans and the subsequent debate. The overall consensus, it seems, is that there really isn’t much of a difference in taste or quality between a brown bottle and a can. The story is very reminiscent of an older debate – wine cork or screw cap?

So, let’s say, you’re at the store and you have the choice between a glass bottle, a plastic bottle and a can of your favorite beverage. With the environment in mind, which should you choose? If only it were that simple! Let’s break it down.

Production: Glass is basically melted silica (sand), which is a relatively abundant resource. Cans are made of oxides which require more intensive mining practices. Plastics production uses mainly harmful chemicals and fossil fuels.

Decomposition: Glass poses no danger to the environment as it is essentially made of sand. Plastics are generally detrimental to the environment, but the plastic recycling numbers present an easy way for consumers to learn how to recycle. Aluminum takes longer than most plastics to decompose, and may leak contaminants into the environment.

Transportation: Glass is heavy and uses more energy in transit. Cans are optimal – as they utilize the least space and weigh much less than glass. Plastic is light but utilizes more space than cans.

Reuse: Glass bottles are an excellent option and can be used over and over again. Each time you refill a plastic bottle, it releases more harmful toxins. Cans are typically more difficult to refill and have also been known to leach toxins.

Greenhouse Gas Offset of Recycling: Recycling one ton of plastic will reduce greenhouse emissions by 3.44 metric tons, while recycling the same amount of glass will only reduce emissions by .07 tons. This may seem like a lot until you take into account that producing plastic and cans is a much more polluting process.

OK, OK, so you want some judgment. Here’s what eco18 thinks:

If you’re planning on reusing the container, use a glass bottle. We like Takeya glass covered water bottles.

If you’re buying in bulk, buy cans. They took a lot less energy to get there, and they will take up less room in your refrigerator!

If you’re on the run, buy a plastic bottle. It’s easier to recycle plastic in public than glass or metal and it’s also the easiest to transport.

But the number one rule – always, always recycle.

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