Earlier, archaeologists found beer samples on an 1840-era shipwreck. The samples were different from modern day beer. Now, scientists have analyzed the oldest preserved samples to know how they were made. The aim of reviewing the samples was to recreate an enticing beer from the beer samples. The scientists have reported details in the American Chemical Society's Journal of Agricultural & Food Chemistry.

According to reports, the samples from the 1840s shipwreck were found near the Åland Islands in 2010. The ship was believed to transport cargo from Copenhagen to St Petersburg of Russia. When archaeologists explored the ship, they found that the ship had a crate of well-preserved beer. The beer was diluted with salt water, but still it contained enough of the original ingredients. Now, the scientists at VTT Technical Research Centre of Finland Ltd. and the Technical University of Munich have been analyzing the samples so that they can create the original beer.

After analyzing the samples, the scientists found that some of the bottles of beer were different. They were composed of varying hop content. They also found that the yeast-derived flavor compounds were same as modern beers with just one difference. According to the researchers, the beer recovered from the shipwreck had higher content of rose-like phenylethanol.

As per the researchers, when they took a sip of the beer, they weren't able to tell the difference in the beers' intended flavors. High levels of organic acids that were produced by bacteria growing in the bottles had given the samples vinegary and soured milk flavors.

The analysis by the researchers has been reported in the Journal of Agricultural & Food Chemistry. It is called 'Analysis of Beers from a 1840s' Shipwreck'. The researchers believe that they will be able to discover the original recipe.