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Plastic versus metal kegs: which material is better?

Do you want to make a sustainable choice for your brewery and the planet?

Ecokeg has been around since 2009 and we’ve always been committed to sustainability. We offer plastic kegs that are 100% recyclable, reusable, and made from recycled materials.

The Ecokeg is also lighter than steel, which means it takes less fuel to transport and reduces carbon emissions during distribution. You can rest easy knowing that this keg will have a minimal environmental impact on the planet when compared with other options like Keykeg or steel kegs.

We know that choosing between different types of materials isn’t always an easy decision, but we hope this blog will help you understand why Ecokeg is the most sustainable solution in the world! If you’re still not sure what type of kegs are best for your brewery, feel free to contact us at any time! 

If you want to finally know what the most sustainable option for your beer kegs is then read on. You won’t regret it.

How Do You Determine How “Sustainable” Something Is?

Brewing is one of many industries with complicated choices when it comes to its environmental impact and sustainability.

The choice of material for beer kegs in terms of environmental impact includes many factors, including strength-to-weight ratio, transportation and recycling.

Strength-to-Weight Ratio

In order to compare the strength of two very different materials such as plastic and metal, we use a new measurement called a strength-to-weight ratio. 

This means that their strengths are determined by how much they weigh with respect to what kind of material it is used for and the resistance put on them when measured against other materials like it.

Historically, metal has always been the superior material when it comes to strength, like George Foreman king of the ring in his day, and there are many good reasons for this. Metal is an incredibly strong material that will never break under pressure or lose its form even during extreme weather conditions. 

However, in recent years plastic has started gaining recognition as a better alternative due to its superior strength-to-weight ratio, durability and sustainability. Plastic is like the Muhamed Ali of keg materials and when there’s a rumble in the jungle, we all know there’s only going to be one winner…


Being significantly lighter than metal also means that plastic is easier to handle along the supply chain from the produces (Ecokeg) and the end-users bar staff. 

This also means that plastic kegs are less of a health and safety risk for breweries and accidents like this, are less likely to be so fatal.


In a world where we are facing an unprecedented level of pollution and global warming, deciding which type of keg to use is more important than ever.

Metals emit more carbon dioxide when transported because they are heavier, whereas plastics release less fumes due to their lightweight.

That means that when it comes to transporting your kegs, plastic kegs are the clear winner, as they are much lighter and therefore, have a lower carbon footprint when transporting beer across the country.


The key to sustainable plastic recycling is how easy it is to separate the materials used.

There’s a lot of plastic that can be recycled, but it all depends on how easy it is to separate the materials. Some plastics are difficult to recycle because they’re made with multiple types of plastics.

So if you can’t easily separate the different plastic materials, you need to burn the plastic for energy recovery which, although better than nothing, is not as good for the environment.

Pringle tubs are an example and they are terrible for the environment because although the individual materials can be recycled, it’s too difficult to separate them and so they end up in landfills or burnt.

Keykeg has the same problem because although they look nice, they are very difficult to break down which means that they’re much harder to re-use for their materials.

So although companies make claims that they “100% recycled”, what this often means is that they are burnt for energy recovery and they are therefore not as sustainable as Ecokegs.

The mantra for sustainability is reduce, reuse, recycle. We really hope you don’t reduce your keg sales, so the next best thing is to reuse your keg. 

Another huge benefit of Ecokeg is that using our rekegging model, you can go one step further by reusing Ecokegs. You can either send them back to us to rekeg for you, you can rekeg yourselves or we can collect the kegs if you prefer a one-way system.


Metals have had a long time at the top when it comes to kegs but they have been overtaken by plastics in terms of efficiency, ease of use and sustainability. 

We’ve all heard that plastic is bad for the environment, but plastic kegs are actually better for your sustainable brewing needs. 

Here’s why: plastic is cheaper and safer than metal, plastic has a lower carbon footprint during transportation; it’s lighter and easier to transport when compared with a metal counterpart. Plus, plastic Ecokegs can more easily be reused AND recycled after use.

Let’s face it, metal kegs are expensive, and they’re not always environmentally friendly.

Ecokeg is a unique type of keg that uses recycled plastic bottles as its main material. This means it’s cheaper for brewers to make, easier for consumers to recycle, AND better for the environment!  With Ecokeg we can help you reduce your keg costs by 50%! We’ll even pick up the tab for recycling at the end of its life cycle. 

It’s time we all start using this sustainable form of kegging! Click the link below to get a free quote.