The invention relates to a freeze-fermented fried dough stick and a production method thereof, belonging to the technical field of
food processing. The invention utilizes the
refrigeration technology and the
yeast fermentation to produce the fried dough stick so as to provide a foundation for the industrialized production of the fried dough stick, enhances the product quality
standardization, the safety and the convenience, and reduces the
acrylamide content in the product and gives a unique
fermentation smell for the fried dough stick. The technical proposal of the invention is that
wheat flour or whole
meal flour or buckwheat flour or oat flour,
yeast, common salt,
sodium bicarbonate,
potassium acid
tartrate,
sodium stearoyl
lactylate and
glutathione are put into a stirring cylinder for even and slow mixing and stirring, then,
ice water is added, and the mixture is continuously stirred into a dough; the dough is taken from the refrigerator, divided into blocks, shaped (to be elognated), refrigerated, and stored in the refrigerator for subsequent use; and when needed, the dough is taken from the refrigerator and then put into a case for
fermentation, and finally the fermented dough is directly put into a frying pan to be fried the into a finished product. In the fried dough stick produced according to the embodiment of the invention, the
acrylamide content is about 80 micrograms per
kilogram of fried dough sticks, however, in the fried dough stick produced by using
alum in the traditional process, the
acrylamide content is about 220 micrograms per
kilogram of fried dough sticks. Besides, the product has a novel smell generated by the fermentation of the
yeast, and has bright yellow color, good appearance, crispy taste and deliciousness.