## 3 Results
### Residue Contents in Austrian Must and Wine Samples
For pyrimethanil, there was a reduction in both white wine and red wine with each of the fining agents used. The reduction was lowest for the bentonite NaCalit and the yeast cell wall products Absolut Wein and Reskue, while the combined products CarboTec GE and Purity D and the plant fibers Flowpure led to medium reductions. The reduction was highest for the two activated charcoal products Granucol GE and especially Grandeco. For the residue cyprodivil, the reduction was greatest for Flowpure, Purity D, Grandeco and Granucol GE. For these fining agents, the levels of cyprodivil fell below the limit of quantification. The reduction of cyprodivil was lowest from the bentonite fining agent, the two yeast wall products Absolut Wein and Reskue and the combined product CarboTec GE. The reduction of mpenanipyrim, on the other hand, behaved differently from the two previously mentioned botryticides. Concerning white wine, the treatment with all fining agents led to a significant reduction compared to the control. Regarding red wine, the use of CarboTec GE, NaCalit, Flowpure and also the charcoal product Grandeco showed no significant reduction. For mpenanipyrim, the two yeast wall products Absolut Wein and Reskue, as well as the combination preparation Purity D, showed very good reductions. For fluidoxonil, fining with bentonite showed no significant reduction of the active substance, while all other treatment agents led to significant reductions of the residue. These were very strong in some cases. In particular, the two charcoal formulations Grandeco and Granucol GE as well as the combined product Purity D produced significant reductions. There was no significant difference between white and red wine. For the residue fenhexamide, only the two charcoal products Grandeco and Granucol GE led to significant reductions compared to the control. Regarding fenpyrazamine, the reduction from treatment with charcoal products was also the highest. For both white wine and red wine, treatment with NaCalit and the two yeast cell wall products Absolut Wein and Reskue did not result in any significant reduction compared to the control. While in the white wines the two combined products Purity D and CarboTec GE led to significant reductions compared to the control, this was not found  
Figure 2: Percentage of samples with quantifiable concentrations of residues: For identification of the samples Tables S1 and S2. in the red wines. The plant fiber Flowpure showed significant reductions in both red wine and white wine. Boscalid was significantly reduced by fining with CarboTec GE, Purity D, Flowpure, Grandeco and Granucol GE. The strongest reduction occurred in the treatment with charcoal fining agents Grandeco and Granucol GE. The reduction was similar for white wine and red wine. Reduction of Pesticide Residues through Wine Treatment with Various Fining Agents: The Effect on Fungicides (Without Botryticides) Examined  
Table 6 shows the concentrations of fungicides. For metalaxyl, significant reductions were obtained only with the two charcoal products and with the plant fiber Flowpure, with the highest reduction being obtained with the Granucol GE treatment. For penconazole, significant reductions occurred from all fining agents. Grandeco reduced the levels below the limit of quantification for both white and red wine. NaClit, Absolut Wein and Reskue led to the smallest reduction, while the two mixed fining agents and Flowpure reduced the content of penconazole to a larger extent, and the two charcoal fining agents produced the largest reduction.