Keeping spices fresh on your boat can be a challenge. Typical spices have a shelf life of 6-12 months after opening. A good rule of thumb for spices on a boat is to purchase the smallest size possible (unless you tend to use a certain spice a lot). When you first open the spice container write the date on the top so you can decide when to replenish.
Humidity and heat cause spices to loose their flavors more than anything. Store spices in the lowest possible spot in your galley and keep th... details