Vegetables with worms in them

Hi,

If three worms have been found in a quantity of vegetables, all of the vegetables are prohibited; we assume that more worms are present, and are simply difficult to detect.

The only the way to permit the vegetables would be if there were a method of filtration available, guaranteed to remove the prohibited entities.

(Shulchan Aruch Yoreh Deah 84:9-10 and 100:4; Shach Yoreh Deah 100:11)

Have a great day,
Mordechai