Question

why should powder contain fewer amount of fines when
it is meant for percolation process of extraction?​

Answer 1

Answer:

The portion of the percolate which is reserved must be the first percolate because it is more concentrated. The portion of the percolate which is evaporated contained traces of active constituents of the drug. Hence,the major portion of the active constituents of the drug are saved from deterioration.

Percolation is the process of a liquid slowly passing through a filter. It's how coffee is usually made. Percolation comes from the Latin word percolare, which means "to strain through." Percolation happens when liquid is strained through a filter, like when someone makes coffee.