Italian police raided the premises of two Prosecco producers in Treviso Province and found sacks with 2 tonnes of sugar. The producrs were adding the sugar (chaptilisation) to increase the alcohol content during primary fermentation, which is against the law. Although it is legal to add a small amount of sugar to aid the secondary fermentation (bubble formation). It was estimated that a third of the two companies production had been chaptilised illegally. However, all the Prosecco production was seized because the producers had exceeded their production quotas.
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