When a product is certified by a independent and acreditated certification body as organic food, it is guaranteeing that the food was produced through -Council Regulation (EC) No 834/2007. 

That means that the European Comission  shall, in accordance with the procedures, authorise for use in this organic production and include in a restricted list the products and substances, which may be used in organic farming for the
following purposes:
(a) as plant protection products;
(b) as fertilisers and soil conditioners;
(c) as non-organic feed materials from plant origin, feed
material from animal and mineral origin and certain
substances used in animal nutrition;
(d) as feed additives and processing aids;
(e) as products for cleaning and disinfection of ponds, cages,
buildings and installations for animal production;
(f) as products for cleaning and disinfection of buildings and
installations used for plant production, including storage on
an agricultural holding.