That depends on the types of materials that were affected by water. Drywall, carpet, and hardwood floors will take longer to dry than other materials in the space. We use moisture meters throughout the process and in many different locations to gauge the moisture levels and will continue to adjust our fans and dehumidifiers to achieve an efficient but effective dry time. The bare minimum of "three days to dry" may only produce a surface dry, but can still leave behind moisture levels that create an ideal environment for mold to grow.