Irene Naftalin, Stand With Us community director, said customers should tell supermarket staff “how much they value the opportunity to buy Israeli goods in their stores”.
ZF chairman Paul Charney said: “Sainsbury’s has so far resisted the boycotters’ call. We need to do everything possible to ensure this boycott attack fails completely.”
Meanwhile, experts meeting in London have said that boycotts of Israel may not succeed in isolating the country, but could become a force in influencing public opinion against it.
Sixty academics attended a three-day conference on the history of boycotts, organised by the Pears Institute for Antisemitism, at London’s Birkbeck College.
Institute director Professor David Feldman said: “Boycotts rarely achieve their economic or political goals but often have more far-reaching effects in building a political movement.”