Originally Posted by nerd

Canned diced tomatoes will usually suck. It appears they are picked barely red and immediately diced (this applies to Italian imports, domestics from Del Monte, and the store brands), yielding a flavorless, plastic-y batch. I am guessing it's because it's hard to put a nice ripe juicy tomato through a dicer machine.

Stick with canned plum tomatoes - so much better.