Yes, the filament can be too dry. Over-drying may lead to a brittle filament, making loading into your extruder assembly difficult. Further, the filament that's too dry could result in unexpected breaks during 3D printing and negatively affect your print results. It's essential to strike a balance when drying filament, ensuring it's not too damp but not excessively dry. Purpose-built filament dryers offer the best solution to remove moisture because you can set them to dry based on the appropriate material. The timer minimizes the risk of overdrying filament.