noncaking

/nɑnˈkeɪkɪŋ/
adjective
  1. Describing a substance that does not form lumps or clumps, especially when stored or exposed to moisture.
    • This noncaking salt pours easily even in humid weather.
    • The noncaking powder stayed free-flowing inside the container for months.
    • Farmers prefer noncaking fertilizer because it spreads evenly across the field.