The Kashrut Dept. of the Israeli Chief Rabbinate published a warning on the eve of Tu B’Shvat, cautioning against eating some of the holiday’s traditional fruits. Figs are at the top of the list, because of concern regarding insects and worms which “hide inside the fruit’s flesh and are difficult to detect.”
Carobs are also listed as “highly infected” because of the way they are grown and stored. The Chief Rabbinate recommends washing the fruit well, checking it for holes, and even banging it against the tabletop, to make sure its insides don’t crumble easily – both being telltale signs of the presence of worms.
The holiday of Tu B’Shvat starts tonight, the 15th day of the Hebrew month of Shevat, marking the New Year for Trees. It is celebrated by consuming the fruits which are indigenous to Eretz Israel according to the Torah.
A kabalistic custom calls for holding a Tu B’Shvat seder, in which participants eat ten local fruits and drink four cups of wine, the latter custom reminiscent of the Passover seder.