Le Sat, 12 Apr 2008 08:32:16 +0100, Steve Slatcher a écrit :
Everyone is concerned with pesticides in wine. What possible long term health hazard caould result in regular drinking of such wines ? I doubt if any serious study has been carried so far ; this would imply compairing a large number of people drinking regular amounts of "industrial" wine for so many years, versus same number of people drinking only biological wine (pesticide free) in the same quantity over the same period of time.
However, one thing must be borne in mind : pesticides are everywhere. For one thing, grape juice contains the same amount of pesticides as wines, at least for white wines (red wines may contain more since the pulp stays longer with fermenting juice, and it may be that pesticides are more readily soluble in alcohol than in watery juice). However it is most likely that red and white wines contain as much pesticides as unfermented juices. Most if not all fruit juices, whole fruit and vegetable contain pesticides, except so called "biological" products.
In the good old days, centuries ago, wines were made with less many chemicals, so it is generally thought. However, the truth was not quite so simple, even though chemical pesticides did not exist. At Queen Elisabeth the First's court, meads and metheglins (spicy meads) were sometimes made using toxic herbs. In the Roman Empire, lots of wines where leaded (lead salts were present because of ageing in lead containers). Leaded white wines were especially priced since they acquired a somewhat sweet taste. True enough, the life expectancy of most Romans was a lot shorter than what it is nowadays for people in most industrialized countries. Not so long time ago, wines were still clarified using "alun", this process started sometimes before 1800. "Alun" is Potassium Aluminium Sulphate, and no one can tell whether it is mildly or weakly toxic, or not at all ; some scientists have said that Aluminium salts could be responsible of Alzheimer 's disease, others claim that this is nonsense