Feed plants with this throwaway

“Cooking water absorbs nutrients from veggies, and this leftover liquid is a no-cost way to nourish plants,” says Coronado. “If you’re cooking spinach, a significant amount of iron will leach into the water. And iron is a pivotal part of the chlorophyll production process—it gives a plant its healthy green color.” To do: Simply extract the food, let the water cool and pour it on plants.