Can you substitute ground ginger for stem ginger?

Yes, you can substitute ground ginger for stem ginger, but keep in mind that the flavor and texture will differ. Ground ginger is more concentrated and has a spicier taste, while stem ginger is sweeter and has a chewy texture. You may want to adjust the quantity, using less ground ginger since it's more potent—generally about one-quarter to one-half of the amount called for in stem ginger. Additionally, consider the recipe's context, as the texture may be important in some dishes.