What temperature range is preferred for storing photographic materials?

What temperature range is preferred for storing photographic materials?

• A. 80-90 F
• B. 32-40 F
• C. Less than 75 F (24 C), preferably 60-70 F (15-21 C)
• D. 90-100 F

Answer: (C)

Heat accelerates chemical changes in photographic emulsions, bases, and adhesives, leading to fading, fogging, and physical deterioration. Storing materials in a cool, stable environment around 60–70°F (15–21°C) slows those processes and helps preserve image quality over time. Warmer temperatures—such as 80–90°F or higher—speed up deterioration, while very cold storage (32–40°F) can bring condensation and handling risks. For long-term preservation, a cool, stable range near 60–70°F is the most protective choice.

Heat accelerates chemical changes in photographic emulsions, bases, and adhesives, leading to fading, fogging, and physical deterioration. Storing materials in a cool, stable environment around 60–70°F (15–21°C) slows those processes and helps preserve image quality over time. Warmer temperatures—such as 80–90°F or higher—speed up deterioration, while very cold storage (32–40°F) can bring condensation and handling risks. For long-term preservation, a cool, stable range near 60–70°F is the most protective choice.