However, don't worry about your health; fusel-alcohols are not very tasty, but pretty harmless. Excessive acetaldehyde can also lend a nail-polish-remover-like flavor to your beer. Reduce the amount of cane sugar, molasses, honey or syrup in your recipe, and watch the fermentation temperature just to be safe. Usually solvent-like flavors and aromas will diminish with time, so give your beer a couple more weeks and try it again.