Ganser corresponds to the fact of finishing with a bias. This method is ideal for making hems in which the fabrics fray or are too thick. 1. After turning the hem over and baste it near the fold, pin the bias at the raw edge of the hem. Then open the bias and stitch it. 
2. Fold back the bias then iron it. To complete the installation of your bias, stitch it to the news: 737337 stitch slipped. You can then undo the basting performed previously. 
