Wisconsin Commercial Structural Pest Control Category 7.1 Practice Test

Cooling grain to 80°F or less before applying a grain protectant keeps the coating effective and evenly distributed. When grain is hot, solvents or carriers in the product can volatilize, reducing coverage and potentially degrading the active ingredient. Cooler grain also helps prevent clumping and ensures the protectant sticks to the kernels rather than boiling off or moving with heat. That’s why the recommended practice is 80°F or below.

Trying to apply at temperatures above 100°F is too hot and increases volatilization and handling risks. Room temperature can be above 80°F, which isn’t guaranteed to meet the requirement. Frozen grain isn’t practical for drying and storage and isn’t in line with typical application guidelines.