I think that this is because of the amount that they will eat - up to six times more than the same volume of boilies. So if you would usually bait up with one pound of boilies per rod per night, you could safely bait with five to six pounds of particles per rod. Instead of two hundred or so boilies in the swim you have hundreds or even thousands of particles. Therefore, you could bait a larger area and keep more carp on the feed for a longer period, making a multiple catch more likely. The particles used most often can be placed into three groups.
Group one is the larger size baits.
These include baits such as tiger nuts, peanuts, giant maize, almonds, sweet lupines, hazel nuts, red kidney beans, pinto beans, pistachio nuts, cashew nuts and butter beans. These can be used in the same way as boilies or fished over the top of a particle from one of the other groups. They work best on hungry waters or waters were the natural food is made up of large mollusks or crayfish. Group two contains, in my opinion, some of the most effective baits. Particles such as groats, oats, wheat, barley, mung beans, tares, maple peas, adzuki beans, Soya beans, dun peas, black eyed beans, haricots, blue peas, chick peas, tic beans and, of course, sweetcorn.