Shaped shorts

This is the engineering wing of the pasta world, shapes designed on purpose to do a job. Helixes lodge sauce in their grooves. Shells cup it. Bells and flowers ruffle their edges to grab what smooth surfaces shed. Many began as hand shapes rolled on rods and boards, then crossed to the extruder when a die could fake the geometry at scale. Judge each one by where the sauce can sit: a channel, a cavity, a ruffle, a twist. If you can name where the sauce hides, you have understood the shape.

Compare the family

Shape	Section	Cook (min)	Surface
Caccavelle	very large bell- or bowl-shaped shell, open at the wide end, roughly 6 cm tall, for stuffing	18-20	ridged
Campanelle	fluted cone with ruffled edge	n/a	textured
Casarecce	rolled open tube with an s-curl section, a narrow ribbon folded in on itself, leaving an open channel down the length	9-11	smooth
Cascatelli	a curved half-tube central channel flanked by two parallel ruffled frills, each projecting at roughly a right angle	13-15	ridged
Cavatappi	hollow ridged helical tube	7-12	ridged
Conchiglie	ridged shell with open cavity	10-13	ridged
Conchiglioni	large ridged shell with an open cavity on one side	13-16	ridged
Creste di gallo	curved ridged tube with a ruffled crest	8-12	ridged
Farfalle	rectangle pinched at the center	11-14	smooth
Fusilli	helix, a twisted ribbon	8-11	smooth
Gemelli	single S-shaped strand twisted into a helix	8-12	smooth
Gramigna	short curled hollow tube	9-11	smooth
Lumache	curled snail shell with one opening	12-13	ridged
Orecchiette	shallow dome on a round disc, center thinner than the raised rim, concave face	9-13	textured
Pipe	curved hollow tube pinched closed at one end	10	ridged
Radiatori	finned ruffled nugget	n/a	ridged
Rotelle	spoked wheel with hub and rim	10-12	ridged
Spaccatella	short curved tube split open along one side, a C-shaped channel	8-10	smooth
Trottole	furled cone, a ribbon wound round a central core	9	textured
Vesuvio	a hollow swirl that climbs from a wide ridged base to a thin peak, resembling a small volcano or a spinning top	8-10	ridged