wheat

• flour is made by milling wheat grains
• wheat grains are harvested and then cleaned to remove any stones or dust
• the grains are stored in dry conditions to prevent moulds from growing on them
• the grains are put into a hopper and are crushed between rollers that crack open the grain
• different types of flour can be made by sieving and removing parts of the grain (wholemeal flour uses all of the grain and white flour uses only 70% of the grain)
• diagram of a wheat grain:

  A) bran - mostly fibre

  B) endosperm - mostly starch

  C) germ - vitamins, protein and fat