The bleach/water solution works great to kill the mold. A trick I learned when I had to use a moisture remediation expert company is: after the bleach/water solution has killed the mold and has been wiped down and the area has dried, wipe the area down with a damp sponge with dish soap (Dawn, Palmolive, etc.) This leaves the soap residue which is oily even when not visible. This keeps the mold at bay for longer periods of time.

Good luck

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