Methanol and acetone completely remove aflatoxins from substrates. Hexane on the other hand doesn't. In case somebody is worried 
Solvent extraction of aflatoxins from oilseed meals
Homer K. Gardner , Stanley P. Koltun , Henry L. E. Vix
J. Agric. Food Chem., 1968, 16 (6), pp 990–993
DOI: 10.1021/jf60160a028
Publication Date: November 1968