The U.S. Army's Pine Bluff Arsenal in Arkansas has ordered 29.5 metric tons of powdered sugar, sparking curiosity about its intended use.
Contrary to initial assumptions, the large quantity of powdered sugar is not for baking cakes. Instead, it will be used to manufacture smoke grenades and cartridges.
According to Task & Purpose, the powdered sugar will be used to produce M18 and M83 smoke grenades and M8 smoke cartridges. These devices require a fuel that burns quickly and produces a large volume of smoke.
Powdered sugar is an excellent fuel for pyrotechnic mixtures.
The powdered sugar will be mixed with a powerful oxidizer, such as potassium nitrate, to generate dense smoke rapidly when ignited. The fine particles of powdered sugar have a larger surface area, making it a preferred choice over crystalline sugar.
Author's summary: US Army buys 30 tons of powdered sugar for smoke devices.