Los Higo (figs) What was saved from fire?

From the text:

Dazed and hugging herself, Esperanza surveyed the surviving victims: the twisted forms of wroughtiron chairs, unharmed cast-iron skillets, and the mortars and pestles from the kitchen that were made from lava rock and refused to burn. Then she saw the remains of the trunk that used to sit at the foot of her bed, the metal straps still intact.