What To Do With All Your Old Spices
When to throw away your spices Spices (the root, seed or non-leafy bits of a plant) and herbs (the leaves, flowers, and stems) spread small amounts of the chemical compounds they contain into your food. These are volatile, in the chemical sense, meaning they change phase states easily. Once a spice is harvested, the clock begins ticking as those compounds turn to from liquids to gas. While it certainly depends on the spice, you’ll notice a loss in potency after roughly a year, and by three years in, they’ll need replacing....