The Co-op is adding its first unfiltered and organic natural wine this month, to build on its “green” wine offering.

The convenience retailer’s range of “green” wines, which are produced using eco-friendly methods, has grown over the last 12 months and its latest addition will join the offering alongside a trio of other sustainably-sourced wines from February 19.

The 12% abv Terra Madre Organic (£6.50) is exclusive to Co-op stores. The unfiltered Sicilian white wine comes from the indigenous grape, Cattaratto.

The wine is produced organically and grapes are harvested by hand. No additives or processing aids are used in the fermentation process leaving a cloudy appearance. The result is a low intervention-style wine, which preserves the fruit immediacy. The bouquet is full of lemon and citrus fruits, with a pleasant freshness and an intense minerality in the final tasting, according to The Co-op.

Edward Robinson, Co-op wine buyer, said: “We have seen an increased demand from our customers and members looking for affordable wines that are sourced in a sustainable way. We continue to champion Fairtrade with a market-leading range that supports global social projects and our move to add more organic wines and bottles sourced using eco-friendly methods, builds on this success.

“Following the popular customer response to the no sulphur added wine from Spain this is a further move to recognise the trend for lower intervention wines seen in the on-trade.”

The 11% abv Pizzolato Prosecco Treviso DOC is the retailer’s first organic Prosecco. It is described as a “sparkling and lively wine” and it is produced in the province of Trieste, at a winery which has been making organic wines since 1991. Pizzolato has also invested in green energy to produce its wines, including water conservation and the use of solar panels.

Co-op’s new Spanish organic red wine, the 14% abv Extreme Bobal 2018 (rsp: £10) champions indigenous and the lesser-known grape variety.

This fresh and light-bodied red wine is made exclusively by Alto Landon at the high altitude 1100-metre winery using only organic fertilisers and natural crop covers to manage the vineyards. Packed full of crunchy berry fruit, this is a juicy red that “reflects growing customer interest in lighter less tannic and chillable red styles”.

Also new to the range, the 13% abv Estrada Douro White 2019 (rsp: £8), is described as being “reminiscent of the Portuguese wines enjoyed by the growing number of British holidaymakers travelling to Portugal each year”.

From the Douro Valley, this fresh white is an aromatic style reflecting some of Portugal’s great indigenous varieties in a fruity and perfumed wine that offers a different taste profile for consumers.

It is produced exclusively for Co-op customers by the retailer in partnership with Real Companhia de Viticultores (RCV) and Lavradores de Feitoria. For many decades, RCV has made high quality wines by working in harmony with the environment, adopting eco-friendly practices across its vineyards from minimalizing water wastage to reducing carbon emission through sustainable viticulture methods.

Many of the new wines are also suitable for vegans, with producers opting for zero or animal-free fining agents to filter the wines. The Co-op claims to be the first-ever retailer to list allergens and ingredients on wines, and so far 120 wines from the range are available for vegans.