Flour in 1878 at the Washburn "A" Mill in Minneapolis which killed 22 people. Bread, pasta, crackers, many cakes, and many other foods are made using flour. Wheat flour is also used to make a roux as a base for thickening gravy and sauces. It can also be used as an ingredient in papier-mâché glue. Cornstarch is a principal ingredient used to thicken many puddings or desserts, and is the main ingredient in packaged custard. Flour Flour is a powder made by grinding raw grains or roots and used to make many different foods. Cereal flour is the main ingredient of
Flour bomb containers of other liquid, making the removal of the resultant mixture difficult. Flour bomb Flour bomb is a fragile container (e.g. a paper bag) filled with flour for the purpose to be thrown at a person or object to cause an inconvenient messy stain. Flour bombs are a classic protest method, along with the throwing of eggs and overripe tomatoes. An example from May 2004 was the use of purple-dyed flour in condoms thrown at the Prime Minister of the United Kingdom, Tony Blair, in the chamber of the House of Commons of the United Kingdom by Fathers 4 Justice.