Strict rules grape

Ruby Roman - a sort of table grapes that grow strongly in the Japanese prefecture of Ishikawa. First appeared on the market in 2008, this grape is thoroughly tested their quality. Each grape red ball the size of a ping-pong table, should weigh no more than twenty grams and sugar content in it should be more than 18%. For example, in grapes "premium" each berry should weigh 30 grams, and the whole bunch - not less than 700 grams. In 2010, only six grape varieties suitable for the standard of "premium". In 2011, no one variety does not meet the standards. And in July 2013 only a bunch of varieties "Ruby Roman" was sold for 4000 dollars, ie each scarlet plump berry cost as much as $ 110.

Source: mirfactov.com/