Are there specific types of documents or media that should not be stored in a fireproof bag due to material sensitivities?

Question

Tyler Smith · Accepted Answer

While fireproof bags offer excellent protection for many types of documents, some materials or media have sensitivities that make them unsuitable for long-term storage within such bags, particularly if the bag is not specifically designed for them. This is a vital question often raised by buyers concerned about the diverse contents of their death planning kits. Traditional paper documents, photographs, and even older microfiche are generally safe. However, items like magnetic media (e.g., old floppy disks, video tapes), optical media (CDs, DVDs), and modern flash drives or external hard drives can be vulnerable to the internal heat and humidity fluctuations, or even residual magnetic fields from certain bag materials, despite the bag's fire-resistant properties. Temperatures below paper's autoignition point can still be detrimental to the data integrity of electronic storage devices. For instance, data on a CD/DVD can degrade at temperatures above 150-170°F (65-77°C), which is well below the protective threshold for paper. Similarly, photographic negatives, especially older acetate-based ones, can be prone to 'vinegar syndrome' or warping under high heat and humidity. Therefore, for digital assets or highly sensitive archival materials, a fireproof data safe specifically rated for media protection (e.g., UL Class 125 for 1 hour) might be a more appropriate investment, or a combination of both physical and offsite digital backup. Many buyers frequently ask about storing passports with biometric chips; while theoretically safe, some opt for specific RFID-blocking pouches inside the fireproof bag for an added layer of electronic protection.