Big wine retailers following biodynamic principles as cosmos demands to be taken seriously
As soon as I saw the sub-head (Supermarket chains check lunar calendar before inviting critics to drink) I just knew I was going to love this story. The idea is by no means a new one: the taste of wine is affected by the moon. How so? Well, just as the moon affects large bodies of water like oceans, some believe they affect small ones as well, right down to a 750ml bottle of vino. Cosmic.
What is more surprising (at least for this cynic), is that the UK's major wine retailers have now bought into the belief that the day, and even the hour, on which wine is drunk, alters its taste. Believe it or not, Tesco and Marks & Spencer, which sell about a third of all wine drunk in the UK, now invite critics to taste their ranges only at times when the biodynamic calendar suggests they will show at their best.
It gets better: the lunar wine calendar has been published for the last 47 years by a gardening great-grandmother called Maria Thun, who lives in rural Germany. She categorises days as "fruit", "flower", "leaf" or "root", according to the moon and stars. Fruit and flower are normally best for tasting, and leaf and root worst. The theory was put to the test at a tasting hosted by David Motion, a London Wine Merchant. Jo Ahearne, winemaker for Marks & Spencer, is now absolutely convinced of the moon's impact after sampling more than 140 wines over two days. "Before the tasting, I was really unconvinced, but the difference between the days was so obvious I was completely blown away." The Guardian conducted its own tests and reported five out of seven bottles showing a marked improvement on 'fruit days' over 'leaf days'.
Others are far from convinced, as the Scotsman pointed out, "including Waitrose [and] most scientists, who point out that the ultimate inspiration for Thun's calendar is Rudolf Steiner, who came up with the notion after reportedly consulting with spirits, although not of the liquid variety. Steiner, a well known educational reformer, also believed that the moods of humans could cause earthquakes".

What is more surprising (at least for this cynic), is that the UK's major wine retailers have now bought into the belief that the day, and even the hour, on which wine is drunk, alters its taste. Believe it or not, Tesco and Marks & Spencer, which sell about a third of all wine drunk in the UK, now invite critics to taste their ranges only at times when the biodynamic calendar suggests they will show at their best.
It gets better: the lunar wine calendar has been published for the last 47 years by a gardening great-grandmother called Maria Thun, who lives in rural Germany. She categorises days as "fruit", "flower", "leaf" or "root", according to the moon and stars. Fruit and flower are normally best for tasting, and leaf and root worst. The theory was put to the test at a tasting hosted by David Motion, a London Wine Merchant. Jo Ahearne, winemaker for Marks & Spencer, is now absolutely convinced of the moon's impact after sampling more than 140 wines over two days. "Before the tasting, I was really unconvinced, but the difference between the days was so obvious I was completely blown away." The Guardian conducted its own tests and reported five out of seven bottles showing a marked improvement on 'fruit days' over 'leaf days'.
Others are far from convinced, as the Scotsman pointed out, "including Waitrose [and] most scientists, who point out that the ultimate inspiration for Thun's calendar is Rudolf Steiner, who came up with the notion after reportedly consulting with spirits, although not of the liquid variety. Steiner, a well known educational reformer, also believed that the moods of humans could cause earthquakes".

On reading all of this one person was foremost in my mind: 'Randall Grahm', one of the original 'Rhone Rangers', proprieter of Bonny Doon vineyard and widely respected as one of the finest winemakers in California. Here is a man who can happily spend hours explaining each and every natural and scientific facet of the winemaking process, only to finish-up telling you that it all comes down to where you put the magic crystals (straight-up, we've discussed this with him at length). And if his wines are anything to go by, maybe there is something to all this cosmic stuff after all?
Labels: random, tastings, wine industry