A group of Dutch entrepreneurs has used their country’s wet weather as a business opportunity by creating a rainwater bitter. At the De Prael brewery in Amsterdam early on Friday evening, bitter lovers turned up for a free tasting of Hemelswater: code blond, a 5.7% beer made from ultra-filtered rain, organic malted barley and wheat, hops and yeast. With climate change linked to increased rainfall in the Netherlands – just as in the UK – they might as well use it as a business opportunity.