article_snippet: The bottles date back to the 1840s .
article_snippet: One of these cracked in the divers’ boat and the liquid that foamed from the cracked bottle looked and, according to the divers, tasted like beer.
article_snippet: One of these cracked in the divers’ boat and the liquid that foamed from the  bottle looked and, according to the divers, tasted like beer.
article_snippet: experts from the VTT Technical Research Centre of Finland and   took samples from two of these bottles – known as A56 and C49 – and analysed two of these bottles physicochemical characteristics and flavour compounds.
article_snippet: Bottles A56 and C49 were similar brown glass bottles,’ explained the researchers.
article_snippet: ‘Bubbles of gas, presumably CO2, formed during sampling, producing a light foam.
highlights_snippet: This was caused by bacteria that had grown in the bottles over the years .
  