Where to steep liqueur?
I have seen most blogs and recipes recently directing you to leave the jar or bottle of alcohol and the steeping ingredients in a cool cupboard while it steeps. Most of my older recipes and various herbal non-food recipes tell you to put the jar in a window sill so it gets the sun and heat.
Does anyone know the logic behind either method? I just started a batch of blood orange liqueur and didn't know if the window sill would do bad things to it.