Hardly a barbecue does without aluminium foil or foil pans. They make it awfully easy to gently cook food on a grill, be it salmon, marinated meat or feta. Afterwards, you simply throw the foil away – you don’t have to scrub anything clean. Some people use aluminium foil and foil pans without a thought; others with a uneasy feeling, knowing that its use is sometimes seen as problematic. So what’s the problem? Contact with acidic or salty ingredients can cause aluminium ions to leach from the foil, first entering the food and then your body, says Daniele Krehl, a nutrition expert for the consum…