1, view the label
Qualified whole wheat flour includes QS/SC logo, product logo, production date, manufacturer, ingredient list, production license number, etc.
Step 2 look at the packaging
Bagged whole wheat flour can be checked to see whether its packaging is intact and whether the seam line is tight and flat. Some manufacturers will also indicate on the packaging that the packaging is only used once. High-quality whole wheat flour is generally sealed at one time, and the seams are tight and flat. The inferior whole wheat flour packaging bag has been stitched for many times, and the stitching line is uneven and not tight, or there are pinholes.
Step 3 look at the appearance
High-quality whole wheat flour is dark in color and does not agglomerate in your hands. The color of low-quality and inferior whole wheat flour is uneven, and some whole wheat flour will agglomerate when rubbed by hand, and even produce impurities such as bugs. The color of whole wheat flour with excessive whitening agent is pink, grayish white or even bluish gray.
Step 4 smell it
Take a small amount of whole wheat flour and smell it in your hand. High-quality whole wheat flour has the smell of wheat and no peculiar smell. Low-quality and inferior whole wheat flour has slight odor, mildew and other odors.
5, by hand feeling
When you touch the high-quality whole wheat flour with your hand, the palm of your hand has a great coolness. When you hold it tightly, it will become a ball, which means that the moisture of whole wheat flour is too high.
Step 6 taste it
Take a little whole wheat flour and chew it carefully. High-quality whole wheat flour is slightly sweet, delicious and light. The whole wheat flour in question has a slight smell, smells fermented, and has sweetness and bitterness. Low-quality and inferior whole wheat flour generally has a tingling sensation, and there will be a sand sound when chewing.
Second, how to preserve whole wheat flour
When you buy whole wheat flour home, it is recommended to store it in the dark or in the refrigerator. Pay attention to the sealing after opening the noodle bag, which can delay the quality change. If it is only temporarily stored, it should be stored in a cool, dry and ventilated place.
3. Can whole wheat flour be eaten after it has expired?
Whole wheat flour can't be eaten after it expires. The shelf life of whole wheat flour is 6~ 12 months at room temperature, but it will change with the change of storage conditions. If whole wheat flour is moldy during storage, it needs to be treated immediately. Once it expires, it is easy to deteriorate or mold, which has a bad influence on the human body.