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Iowa’s latest advisory bulletin certainly makes for a catchy headline.
The state’s Alcoholic Beverages Division stated that, in keeping with Food and Drug Administration guidelines, copper should not come into direct contact with foods that have a pH below 6.0.
That includes vinegar, fruit juice, wine, and everyone’s favourite brunch cocktail: the uber-popular Moscow Mule.
“When copper and copper alloy surfaces contact acidic foods, copper may be leached into the food,” the division notes.
High concentrations of copper are known to be poisonous and can cause food-borne illness. So the bulletin triggered nationwide hysteria, with