Which granulation method is the cheapest and involves slugging followed by milling and screening?

• A. Dry Granulation
• B. Wet Granulation
• C. Fluid Bed Granulation
• D. NOTA

Answer: (A)

In granulation, choosing a method often comes down to whether you want to avoid liquids and drying steps. The dry granulation approach uses slugging to compact the powder into slugs, then mills and screens those slugs to produce granules. Because it doesn’t involve binders, solvents, or a drying phase, it skips those added costs and equipment needs. That makes it the cheapest option among common granulation methods. Wet granulation, by contrast, requires binders and solvents and a drying step, while fluid bed granulation involves spray systems and substantial energy for drying. So the slugging-first dry route—compact, mill, and screen—fits the description of being cheapest and using slugging followed by milling and screening.