California table grapes are available in seeded and seedless varieties. Have you ever wondered how seedless grapes are seedless? Well, it's a great day to learn something new! Here's the science behind seedless varieties: Table grapes have a biological mechanism (stenospermocarpy) in which the vine naturally stops growth of the seeds. The remains of the undeveloped seeds, called seed traces, may be visible in seedless table grapes, as shown in this reel. Traditional breeding techniques are used