Putting bacteria back into our food, one pickle at a time

For millennia, all pickles were living things, home to an invisible mass of microbes. Now they often only live in sterile vinegar - but we need to put the bacteria back, for the sake of our health.

I was recently asked to speak at a friend’s birthday celebrations. Tim being a poet, most of the other guests did a turn in verse. I, however, was asked to riff on the subject of pickles. Party catering came in the form of vinegary vegetables.
 
Tim, you see, is a pickle lover; before I began the research for my talk I might even have labelled him an obsessive. Then I read about America’s small but passionate “fermento” movement. Fermentos believe that pickles are the key to many modern health problems – not just any old gherkins, mind you, but proper pickles: the old-fashioned, traditionally fermented kind. The sort of pickle that’s still alive when you bite into it.
 
For millennia, all pickles were living things, home to an invisible mass of microbes. These microbes were responsible for transforming fresh food into something that would keep for months, even years, through fermentation.
 
The pickles achieved this by converting the sugars in the fresh foods to acids, creating an environment so acidic that no bacteria which were potentially more dangerous could survive. The food was thus preserved almost indefinitely. Three hundred-year-old pickled breadfruit has been found in Fiji in an edible, if not particularly attractive state. As Michael Pollan concedes in his book Cooked: a Natural History of Transformation, “the idea that the safety of a food is guaranteed by the bacteria still alive in it is a hard one for us Pasteurians to stomach”. But every culture has its own fermented speciality, often an acquired taste, because the process often produces very distinctive flavours.
 
It can be hard for the uninitiated to stomach Japanese natto, or fermented soybeans; the same is true of the vinegary Ethiopian injera bread. And Captain Cook fairly had to force his crew to eat sauerkraut to ward off scurvy during a 27-month voyage.
 
As well as the tangy cabbage they could see, Cook’s sailors would have been ingesting all manner of what is called, in probiotic food advertisements, “friendly bacteria”. Yet in the past century what is now a selling point in pricey yoghurt drinks has become the enemy in our diet as a whole.
 
Live yoghurt is the last refuge of the living foodstuff – most “pickles” today are in fact just soaked in sterile vinegar. Even those that are still fermented in the old way, such as kimchi and sauerkraut, are now routinely pasteurised before sale.
 
Fermentos (or “post- Pasteurians”) believe this fear of the microbial world is making us ill – and, though it is unlikely that yoghurt or sourdough holds the key to universal health, there is growing evidence to suggest that, mad as they sound, the fermentos may have a point.
 
Consider that 90 per cent of the cells in our bodies belong to microbes, many of them resident in our digestive system and most of them, if evolutionary theory is to be believed, living there for a very good reason. Though we still know relatively little about the function of the vast majority, studies suggest a diet rich in beneficial bacteria can have surprising benefits, from shortening the duration of children’s colds to relieving the symptoms of asthma and irritable bowel syndrome.
 
It seems that human beings need those microbes as much as they need us, yet we are still doing everything we can to kill them off. The routine use of antibiotics, and our obsession with sterilising everything in sight, from chopping boards to cheese, makes us fail to replenish the microbial crowd within, and neglect to nourish its existing residents.
 
Naturally, only the most deluded fermento would deny that Pasteur’s discovery saves millions of lives worldwide, but in a far more hygienic age it is no longer a universal panacea. We need to put the bacteria back, and if that means fermenting sauerkraut in the shed, then so be it. Perhaps Peter Piper was ahead of his time.
Snacking on traditionally preserved gherkins and olives can be a great thing for the gut. Image: Marcus Nilsson

Felicity Cloake write the food column for the New Statesman. She also writes for the Guardian and is the author of  Perfect: 68 Essential Recipes for Every Cook's Repertoire (Fig Tree, 2011) and Perfect Host: 162 easy recipes for feeding people & having fun (Fig Tree, 2013). She is on Twitter as @FelicityCloake.

This article first appeared in the 07 October 2013 issue of the New Statesman, The last days of Nelson Mandela

ALAMY
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Putting the “savage” back in Sauvignon Blanc

This grape is so easily recognised that it might as well wear a name tag, but many varieties are brasher and bolder than you'd expect.

I was once the life’s companion of a man who was incapable of remembering names. This should have bothered him but he’d grown used to it, while I never could. At gatherings, I would launch myself at strangers, piercing the chatter with monikers to pre-empt his failure to introduce me. I was fairly sure that it was the other person’s name he couldn’t remember but I couldn’t discount the possibility that he had forgotten mine, too.

In wine, the equivalent of my bellowing is Sauvignon Blanc. This grape is so easily recognised that it might as well wear a name tag: it tastes of grass, gooseberry, asparagus and, occasionally, cats’ pee. The popularity of its New Zealand incarnation is probably partly a result of that cosy familiarity – which is ironic, given that “Sauvignon”, harking back to its evolution from wild grapes in France, comes from the French for “savage”. Never mind: evolved it has. “Wine is the most civilised thing we have in this world,” wrote the 16th-century author Rabelais, and he was born in the Touraine, where the gently citrusy Sauvignon makes an excellent aperitif, so he should know.

New World Sauvignons are often brasher and bolshier. It is likely that Rabelais’s two best-known heroes – Gargantua, who is born yelling, “Drink! Drink! Drink!” and whose name means “What a big gullet you have”, and Pantagruel, or “thirsting for everything” – would have preferred them to the Touraines. They work well with spice and aromatics, as Asian-fusion chefs have noticed, while the most elegant Loire Sauvignons, Sancerre or Pouilly-Fumé, make fine matches for grilled white fish or guacamole – in fact, almost anything enhanced by lemon. In Bordeaux, where whites principally blend Sauvignon and Sémillon, the excellent Dourthe is entirely the former; 9,000 miles away in Western Australia, Larry Cherubino makes a rounded Sauvignon in a similar style.

Many variations but one distinctive flavour profile – so I thought I was safe asking my best friend, an unrepentant wine ignoramus, whether she liked Sauvignon. Her shrug spurred an impromptu tasting: Guy Allion’s quaffable Le Haut Perron Thésée 2014, from Rabelais’s Touraine; a Henri Bourgeois Pouilly-Fumé Jeunes Vignes; and Greywacke Wild Sauvignon from Kevin Judd. Judd, who was largely responsible for making New Zealand whites famous when he worked for Cloudy Bay, is now putting the savage back in Sauvignon using naturally occurring (“wild”) yeasts that make the wine rich and slightly smoky but are not, by his own admission, terribly easy to control. This was the most expensive wine (£28, although the Wine Society sells it for £21.50) and my friend loved it.

She had expected to prefer the French wines, on the slightly dubious basis that she is Old World: of Anglo-Danish stock, with a passion for Italy. Yet only familiarity will tell you what you like. This is why bars with long lists of wines by the glass provide the best introduction. A favourite of mine is Compagnie des Vins Surnaturels, a Covent Garden joint run by two women, the sommelier Julia Oudill and the chef Ilaria Zamperlin. If the menu – scallops with Worcestershire sauce, croque-madame with truffled ham and quail egg – is delicious, the wine list is fabulous, with at least ten whites and ten reds at 125ml, with prices ascending into the stratosphere but starting at £6.

There are usually a couple of French Sauvignons, although many bottles still don’t name the grapes and the winemaker Didier Dagueneau (the “wild man of Pouilly”), whose wines feature here, preferred the old Sauvignon name Blanc Fumé. Thank goodness Sauvignon, despite its reputed savagery, has the manners to introduce itself so promptly: one sip, and you can move on to the congenial task of getting to know one another.

Next week: Felicity Cloake on food

Nina Caplan is the 2014 Fortnum & Mason Drink Writer of the Year and 2014 Louis Roederer International Wine Columnist of the Year for her columns on drink in the New Statesman. She tweets as @NinaCaplan.

This article first appeared in the 05 February 2015 issue of the New Statesman, Putin's war