Drying filament: the step nobody sees

PLA pulls moisture out of the air. In Georgia, that happens fast. A spool left open for a week in summer will print with tiny steam bubbles that show up as a rough, matte surface and a stringy mess between parts.

What wet filament looks like

• Fine white speckling across a surface that should be glossy.
• Thin webs of plastic strung between two parts of the model.
• A popping or crackling sound from the nozzle — that is water turning to steam.
• Weak layer adhesion, which is the one that actually matters. A wet print can look acceptable and snap along a layer line later.

What we do about it

Every spool goes into a dryer at 45°C for at least six hours before it touches a printer, and it lives in a sealed box with desiccant between jobs. It costs us time we cannot photograph and cannot explain on a product page, and it is the difference between a piece that lasts and a piece that fails in a month.

Nobody has ever returned a duck because we dried the filament. Plenty of people return one because somebody did not.

If you print at home and your results suddenly went bad without a settings change, dry the spool before you touch anything else in the slicer.