Why are the edges on the long side of lasagna usually crimped?

The present invention is an improvement over such prior lasagna noodles. The lasagna noodle incorporating the principles of the present invention results in better compacting of the noodles with adjacent noodles, both above and below a given noodle, in the finally prepared lasagna. Another advantage of the noodles incorporating the principles of the present invention are that they retain more sauce in their corrugations and, thereby, more readily maintain the integrity of the lasagna during serving.

And, the lasagna noodle incorporating the principles of the present invention results in a more uniform distribution of the sauce in the lasagna product than did the prior noodles. Moreover, the proportion of noodle in the finished product may be larger for a given number of noodles when the noodle of the invention is employed than where the same number of prior noodles are employed or, conversely, a fewer number of noodles incorporating the principles of the present invention may be utilized than where the prior noodles are employed to obtain the same proportion of noodles in the finished product.