The company says it hopes to introduce arugula, baby spinach and romaine lettuce to its product line next year. Rabbi Asher Sternbuch of the Machzikei Hadas Antwerp kashrut authority said the new product line and the fact that the produce does not need washing or checking represented a big breakthrough for kashrut observers.Sternbuch said that the high level of control over the environment and the produce meant that the risk of the presence of insects was practically eliminated.The rabbi said that Machzikei Hadas kashrut inspectors have conducted laborious inspections of numerous batches of produce and are yet to have found even one insect amongst the herbs. Sternbuch said the development was very welcome and that it represented a big opportunity for the kashrut market.