[header] How to tell if a kiwi has gone bad [title] Check the skin and pulp for mold. [step] Pick up the kiwi and look at it closely for patches of brown or green mold. The mold may appear fuzzy, with flecks of white on the skin or pulp of the fruit. 
[substeps] There may be patches of mold all over the kiwi or on just one area. Because kiwis are so small, it's best to throw away moldy ones rather than try to cut off the mold and eat the non-moldy area.