Palazzo Tronconi has joined the Vinnatur association since 2018, signing the protocol proposed by the same in which no use of pesticides and doses of sulfur dioxide (sulphites) is foreseen in a maximum concentration of 50 mg / l for white wines and 30 mg / l for red wines.
Vinnatur is the only association that systematically carried out, without notice, the analyzes to verify the above.
Attached you will find the “multi-residue” analysis of Fregellae 2016 and the concentration of sulfur dioxide to attest to our serious work in the fields and in the cellar.

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clicking on the link below you can download the analysis.
multi-residue analysis