What is an essential use for an iron in sewing?

Using an iron to remove wrinkles from fabric is fundamental in the sewing process because it ensures that the fabric lies flat and is evenly prepared for sewing. Wrinkles can lead to misalignment, which can affect the overall quality and fit of the final garment. Prior to cutting and sewing, ironing helps in achieving a cleaner and more precise result, allowing for accurate measurements and facilitating a smoother application of techniques like attaching zippers or securing hems. This step is crucial as it contributes to the professional finish and aesthetic appeal of the project, making it an essential practice in sewing.