Rigatoni smaller version, close to the size of penne. Their name takes on the diminutive suffix "-ino" (pluralized "-ini") denoting their relative size. Rigatoni is a particular favorite pasta shape in the south of Italy, especially in Sicily. Its namesake ridges make better adhesive surfaces for sauces and grated cheese than smooth-sided pasta like ziti. Rigatoni Rigatoni are a form of tube-shaped pasta of varying lengths and diameters originating in Italy. They are larger than penne and ziti, and sometimes slightly curved, though nowhere near as curved as elbow macaroni. Rigatoni characteristically have ridges down their length, sometimes spiraling around the
Pasta cooking pasta with high heat resistance, xanthan gum to retain moisture during storage, or hydrothermally-treated polysaccharide mixtures to produce textures similar to those of normal pasta. The storage of pasta depends its processing and extent of drying. Uncooked pasta is kept dry and can sit in the cupboard for a year if airtight and stored in a cool, dry area. Cooked pasta is stored in the refrigerator for a maximum of five days in an airtight container. Adding a couple teaspoons of oil helps keep the food from sticking to itself and the container. Cooked pasta may be frozen for