1. A bottle of wine that is OPEN-
The best time to throw a coffee is after three months of being use. Keeping coffee longer than that doesn’t mean that it’ll go “bad” – but the flavor will get weak. If you want to keep your coffee fresher longer, put it in a dry, airtight container in a cool place, since moisture and heat speed up deterioration and change the flavor. If it’s a large container of coffee, keep out only what you’ll use over a few weeks, and put the rest in an airtight bag in the freezer. This slows the molecular changes that alter the taste.
3. Fragrances/Perfumes-The smells starts to change after six months of being use, due to the fragrance molecules changing and deteriorating through exposure to heat and air. If you want to keep your favorite bottle longer, here’s a cool trick – store it in the fridge! The chilly temperatures keep the ingredients fresh, so the scent will remain the same for more than a year. To keep the scent lasting all day, spray not just your “pulse points” on the wrist and neck, but also your “crease points” – like the inner elbows and behind your knees, which have more moisture that binds to fragrance molecules.