Active Dry Yeast vs Instant Yeast: Active dry yeast and instant yeast can generally be used interchangeably, one-for-one (although active dry yeast may be slower to rise). So if a recipe calls for instant yeast and you use active dry yeast instead, you may want to consider adding an extra 10 to 15 minutes for the rise time. If a recipe calls for active dry and instant is used, reduce the rise time by 10 to 15 minutes. Other than that the recipe can stay exactly the same and there is no need to make any changes.