How long will a fresh pineapple soaking in Stoli vodka last?

Fresh pineApple soaked in Stole vodka will last for years as long as the pineApple is totally covered by the vodka and not in contact with the air within a closed container. The alcohol will inhibit the growth of bacteria's and the liquid will inhibit oxidation. By the way, I am going to try in recipe, sound delicious. J