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Sevenoaks A21 / M25 junction 4
Sevenoaks A21 / M25 J4

The science behind BORA

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The BORA story starts back in 2006 when German master carpenter Willi Bruckbauer first developed and patented a revolutionary cooktop extractor system. The next year BORA was born, with its aim to see “The end of the extractor hood”.

Since then the company has gone from strength to strength, winning numerous innovation awards and finding a place in homes around the world.

But how does BORA work? What’s the science behind the suck?! We explore this ingenious extractor system in more detail.

How does BORA work?

The BORA extractor systems are integrated into the hob and, as you cook, they draw all the grease and smells from your pans into an easily-cleaned filter system.

Because it’s located directly next to the source of the vapours, all those odours and cooking particles are quickly captured and never expelled into your kitchen.

The science bit

It’s a neat little piece of physics that makes BORA so effective.

The BORA extraction system creates an area of low pressure, effectively a partial vacuum, which draws in air from the surrounding hob.

The power behind this cross-flow suction ensures that the air (along with the cooking vapours, which rise at a maximum of 1 metre per second) is sucked in at a faster rate than it rises (at 4 metres per second), so it can’t escape from being pulled into the extractor.

The vapours then travel through a stainless steel filter which, if the cleaned air is to be returned into your kitchen, is combined with activated carbon foam or granulate as a purifier to remove grease and food particles. Alternatively the air can be channelled out of your home through a wall or roof.

The benefits of BORA

The BORA extractor system is incredibly efficient; it has achieved a ‘cleanrate’ of 100%, meaning that all odours, grease and cooking particles are extracted from the cooking area.

The result is that it removes all of the following:

Cooking smells

All cooking particles, including those carrying odours, are extracted directly from the cooktop by the BORA system. This means that, even when standing over the hob to cook, you and your clothes will be unaffected by the cooking smells. And, of course, the same applies to the rest of your kitchen.


Grease particles are drawn in along with the other cooking vapours, meaning that your kitchen doesn’t get that nasty film of oil over it. The grease is collected in a stainless steel filter which can be easily cleaned by hand or in the dishwasher.


By drawing in the steam emitted from cooking, the BORA extractor system helps to manage the humidity levels in your kitchen and reduces the risk of condensation problems. Particularly important if you’re having a beautiful new natural wood kitchen fitted. It also prevents the issue of fogged up glasses when you lean over to stir a pan!

And the BORA system has a huge design advantage over a traditional extractor hood, as it gives you much more flexibility on where to locate your hob.

BORA products

BORA offers products to suit the needs of every cook…

BORA Professional 2.0

The flagship range! Linear in its style, the Professional 2.0 incorporates a rectangular extractor between large, modular cooking areas, so you can select the cooking surface arrangement that’s perfect for you.

BORA Classic

Like the BORA Professional, the BORA Classic has a rectangular extractor with a range of modular cooktops to choose from. It’s slightly more compact than the BORA Professional but offers the same flexibility to suit each family’s individual requirements.

BORA Basic

This has a stylish round extractor system set in the centre of four cooking zones. Combining both the hob and extractor into a single module, this is the most compact of the BORA range but also the most powerful.

BORA Classic 2.0

Due out in May 2019, the Classic 2.0 includes central controls to maximise the cooking area while retaining BORA’s trademark aesthetics.


Promising to be “minimalist, flush design, highly elegant, extremely quiet and intuitive” the BORA Pure range should be with us in June 2019.

Don’t believe the hype? Come and see for yourself!

We have both the BORA Basic and BORA Classic 2.0 available for a live demonstration in our Sevenoaks kitchen showroom.

Once you’ve seen the extractor systems in action we’re sure you’ll agree with BORA that this truly is the end of the extractor hood!

Vince Hone

Vince Hone

Since founding Great British Kitchens & Interiors back in 1984, Vince has worked tirelessly to create exquisite spaces for hundreds of clients to cook, entertain, work and relax in.