How to Tell if Butternut Squash is Bad?
Examining the rind is an excellent way to determine if a cut butternut squash is bad. The rind should be an even orange color with no soft or rotten spots. You can slice out the bad areas and still use them. If the rind contains any signs of mold, it should be discarded, and it should also be free of moisture. If squash is waterlogged, it should be thrown away.
Check the rind of the butternut squash. It should be firm and even in color. If the rind feels soft or mushy, it may be over-ripe.