Alei Katif and other such vegetables are grown insect-free. They are grown in greenhouses which are hermetically sealed to close them off from entry by insects. This is done with plastic curtains and netting. Entry by insects from the outside is prevented in part by double doors―-one of the doors is always closed. Other special steps are taken as well.
Some Alei Katif products now suggest that the consumer wash the product. This is still an advantage to the consumer, since, if the product were not grown by Alei Katif, checking ―not just washing―would be required.