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Wednesday, 19 February 2020

World’s first ‘climate positive’ gin produced from peas

World’s first ‘climate positive’ gin produced from peas

Kirsty Black and Graeme Walker holding a bottle of Nadar Gin and a glass of peas

The world鈥檚 first 鈥渃limate positive鈥 gin has been created by UK scientists 鈥 using the humble garden pea.

Five years of research at Abertay University and the James Hutton Institute in Scotland, in collaboration with Arbikie Distillery, has culminated in today鈥檚 release of new gin, 狈脿诲补谤.

Created by Arbikie鈥檚 Master Distiller, PhD student Kirsty Black, each 700ml bottle of 狈脿诲补谤 has a carbon footprint of -1.54 kg CO2e (carbon dioxide equivalent), meaning it avoids more carbon dioxide emissions than it creates.

This environmental performance 鈥 significantly better than traditional wheat gins 鈥 is mainly achieved by utilising all useful components of the peas from the dehulling (de-skinning) and distilling process, to create home-grown animal feed.

It also takes advantage of the peas鈥 natural ability to source essential nitrogen for growth from the atmosphere through a process known as 鈥榖iological nitrogen fixation鈥, negating the need for environmentally-damaging synthetic fertilisers.

In addition, during harvesting, some nitrogen is left behind in-field in crop residues, improving soil fertility and function for the next crop in the rotation, thereby further reducing the need for synthetic fertilisers.

During distilling, a waste product known as 鈥榩ot ale鈥 is created from the leftover pea protein and spent yeast, and this can be used as a highly nutritious animal feed.

The aim is to offset the high environmental costs of importation of animal feeds, which are most often derived from soybean and commonly sourced from cleared rainforest and cerrado regions.  

The first batch of Arbikie pea gin pot-ale is currently being used to feed cows on a farm neighbouring the distillery, which is based near Montrose.

Black鈥檚 PhD at Abertay University and the James Hutton Institute is focused on exploring the potential of pulses such as peas and beans as an environmentally sustainable feedstock to the brewing and distilling industries.

The research team is also working to investigate whether pot-ale protein can be isolated and used as a source of food for humans.

Black said the finished gin product is flavoured using natural botanicals, plus lemongrass and citrus leaf, contributing to a 鈥渇resh and fruity鈥 aroma.

She added: 鈥淎t Arbikie, everything we do is dictated by the seasons and our geographical location. Year on year we see the weather, harvest timings and crop quality change; all highlighting the need to address the climate crisis now. By producing the world鈥檚 first climate positive gin, we are taking initial steps towards improving our environmental impact, while demonstrating what can be achieved when like-minded researchers and businesses come together.鈥

Professor of Zymology at Abertay University, Graeme Walker, is supervisor on the PhD project.

He said: 鈥淭his project is an excellent example of what can be achieved with the right blend of academic expertise and industry know-how. Creating real-world impact through our scientific research is part of Abertay University鈥檚 core mission and I鈥檓 delighted to see that coming together in this genuinely innovative project.鈥

Dr Pietro (Pete) Iannetta, an agroecologist at the James Hutton Institute, added: 鈥淭he climate change crisis demands far greater respect for natural resources that has previously been afforded. We must be more efficient, and the best place to start is locally. Towards that end, this is not simply a story of a new gin but is in fact another great example of Scottish teamwork and ingenuity. 狈脿诲补谤 is fully provenanced as a sustainable Scottish product, and when purchased consumers can be assured they are also encouraging more-practical crop rotations, helping to reduce artificial fertiliser use, improve soil qualities, and most importantly, to directly reconnect the values of local consumers and farmers to help realise the most respectful and sustainable of agricultural operations at home.鈥

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