This is so yummy that it doesn't last long at all in my house. If you're into savoring it, I recommend keeping your bottle in the refrigerator and using it within a couple of months. Freezing it is not recommended as it can lead to the ingredients separating from each other and clogging the bottle. I have noticed that after a bottle of homemade Baileys mellows in my refrigerator for a week or so, some of the alcohol's bite disappears. If you feel like your mixture is too strong, let it sit for a while and see if it's better.