The most popular summer drink these days might still be the Aperol Spritz, but recently there have been claims online suggesting that colourings contained in the aperitif are toxic and carcinogenic. The good news is that wee checked out this claim and found that it is misleading. The concerns relate to Aperol, one of the brands of the Campari Group and an Italian liqueur used as an aperitif or a mixer in cocktails. You make an Aperol Spritz by mixing it with Prosecco and mineral water, and these days, you can also find drinks similar to Aperol on offer at supermarkets under their own brands. A…