O’Briens Wine Beer & Spirits
33 Spruce Avenue Stillorgan Industrial Park Co. Dublin Ireland Ireland
+353 1 2931040 online@obrienswine.ie Monday-Saturday 10:30am-10pm Sunday 12:30am-10pm
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Ars in Vitro

Tandem Ars in Vitro


  • Grape Variety

    Merlot, Tempranillo

  • Alcohol By Volume


  • Vegetarian & Vegan

    Suitable for Vegetarians and Vegans

A classy DO red from a small 'quality obsessed' producer in Navarra, this is sensational, savoury, complex red. Multi-layered with deep, dark-berry and damson fruit, well-structured and long-lasting flavours - a class act.

In the vineyard

22 hectares of vineyards in the Yerri Valley provide the basis of Tandem's quality mission. These 22 hectares are divided equally between Tempranillo, Cabernet Sauvignon and Merlot. The vines are on average 20 years old and are managed in exemplary fashion.

In the winery

Grapes enter the winery by gravity. Cold maceration before fermentation starts at controlled temperature, 28 - 30 ºC. Fermentation without pumps, using cap plunging (pigeage) to obtain an elegant colour and fine tannins that will determine its palate structure. Wines racked by gravity to the lower storey vats for their malolactic conversion. Wines kept in vat for minimum 24 months settling down for a natural fining and stabilisation. Bottled by gravity with a minimum filtration.

Press & Awards

  • Wine of the Week
    "Navarra is one of Spain's hottest winemaking spots right now - and the home of this very Tempranillo and Merlot blend. This is new-wave winemaking at its very best. A savoury and complex red with berry and damson fruit. " Matthew Nugent, 2011 Vintage
    The Irish Sun

Customer Satisfaction

As a family business we ensure a warm and friendly service whether you shop in store or online. We strive to create an environment of trust, an experience to enjoy and a brand to recommend. O’Brien’s delivers an extensive range of wines beers and spirits, some world famous others small and bespoke, all the best quality and all at the best value. Our staff are knowledgeable and enthusiastic about our range and strive to understand and exceed your expectations.

Free Delivery

No minimum order and if you spend €60 or more we'll deliver your order for free anywhere in Ireland.

Orders are normally delivered within 2-3 business days (Monday-Friday excluding bank holidays) of you placing the order.


Change your mind? No problem. You can cancel your order at any stage or return some or all of it through any of our stores or we can arrange a collection. Simply contact us by phone on 1850 269 777 (or +353 1 2693139 from outside Ireland) or email online@obrienswine.ie and we'll look after the rest.

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