# Commission Delegated Regulation (EU) 2019/934 of 12 March 2019 supplementing Regulation (EU) No 1308/2013 of the European Parliament and of the Council as regards wine-growing areas where the alcoholic strength may be increased, authorised oenological practices and restrictions applicable to the production and conservation of grapevine products, the minimum percentage of alcohol for by-products and their disposal, and publication of OIV files, Division 1: The sweetening of wine may be authorised only if carried out using one or more of the following products:

Extent: E+W+S+N.I.

(a)grape must;
(b)concentrated grape must;
(c)rectified concentrated grape must.
The total alcoholic strength by volume of the wine in question may not be increased by more than 4 % vol.

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Source: https://www.legislation.gov.uk/eur/2019/934/annex/I/part/D/division/1 (the official version)
Page: https://openlegislation.uk/eu-regulation-2019-934/annex-I/part-D/division-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.