How to process white sugar and ginger slices

Wash and peel the fresh ginger and cut it into thin slices 3mm to 5mm thick. The ingredients were prepared according to 50 parts of ginger, 32 parts of sugar, 4 parts of powdered sugar and 0.25 parts of citric acid. First prepare citric acid solution as heavy as sliced ginger, heat it with ginger slices to boil, remove ginger slices, rinse and drain. Then prepare 62%-65% concentrated sugar solution, add 0.15% citric acid to boil all the sugar, filter out the impurities, put in the ginger slices and cook again, boil until the sugar solution is thick and drop into beads, then cease fire, remove the ginger slices, sprinkle the ginger slices with white sugar and mix well, spread out for 1-2 days or put in the baking room, bake at 40 ℃-50 ℃ for 4 hours, then dry into white sugar ginger slices.