1, generally speaking, cooked pasta is white, if you find that the color of the pasta has begun to white a little bit of cooking a while you can fish out. In addition, there are some claims on the Internet that cooked pasta is easy to stick to the wall when it is thrown out, so if you are interested, you may want to try. Of course, you can also pinch it with your fingernails or taste it with your mouth.
2, in fact, the standard practice of pasta is not very slow, boiling water within 10 minutes is usually cooked. If you think it's slow, you can use a thinner pasta package with a thick and thin label and recommended cooking time, the fastest 1-3 minutes can be cooked through.