Actually it was Cypriot pottery... but... you are appealing to Kathleen Kenyon but her own main argument undoes her complete case... the Cypriot pottery was found in the rich section of town
https://www.pinterest.com/pin/304063412312616317/
and the grain left uneaten... as the Bible claimed it happened during Barley harvest... Rehab hid the spies under barley on the roof... all consistent
''The presence of these grain stores in the destroyed city is entirely consistent with the biblical account,'' Dr. Wood wrote. ''The city did not fall as a result of a starvation siege, as was so common in ancient times. Instead, the Bible tells us Jericho was destroyed after but seven days.''