The correct answer is that EtOH is flammable, and having an open dish of flammable liquid sitting around in the kitchen won't win any Betty Crocker awards or fire marshal salutes, even with the low probability of ignition.
Consider how big a fire the 40 ml would create, and the issues that might present at a chosen location. For instance, cooks splash small quantities of ethanol in dishes and ignite them when cooking flambe, but chose their location and the quantity they use is critical.
Vacuum is the fastest way to remove residual solvents at low temperatures, but ethanol is a Generally Regarded As Safe (GRAS) solvent, and you can get it low enough to use without it.
What simple evaporation will leave you with, after most of the alcohol is gone, is resin with an azeotropic mixture of EtOH and water, plus some emulsion.
If you stick it in the freezer for a bit, the resin will become more solid and you can pour off or wick/dropper off much of the water mixture.
You can remove the rest in a 250F oven in a shallow dish. That will partially decarboxylate it and if you don't want it fully decarboxylated, remove it when the water bubbles cease.
