In short, storing items in old film canisters may present risks depending on the canister’s composition, the stored item, and environmental factors. While seemingly innocuous, the degradation of the plastic, the presence of residual chemicals, and potential airtightness all contribute to potential damage to your stored belongings.
Understanding the Risks: A Deep Dive into Film Canisters
Old film canisters, often made from plastic like cellulose acetate, polystyrene, or polypropylene, were designed for short-term film storage. Over time, these materials can degrade, releasing volatile organic compounds (VOCs) and potentially becoming brittle or sticky. Furthermore, some film canisters might have been exposed to film processing chemicals, leaving behind harmful residues. The inherent airtightness, while seemingly protective, can also trap moisture and accelerate decay in certain materials.
The key takeaway is that blanket statements about safety are impossible. Careful assessment of the canister’s condition, the item to be stored, and the long-term impact is crucial before repurposing these relics of the analog age.
Potential Hazards of Using Old Film Canisters
Several factors contribute to the potential unsafety of storing items in old film canisters:
- Material Degradation: Cellulose acetate, a common plastic in older canisters, is notorious for breaking down and emitting acetic acid, causing the dreaded “vinegar syndrome”. This acid can damage not only the canister itself but also any contents within.
- Chemical Residue: Film processing involved a range of chemicals, some of which might linger within the canisters despite cleaning attempts. These residues can react with stored items, causing discoloration, corrosion, or outright destruction. The risk of chemical contamination is significant.
- Airtightness and Moisture: While airtight containers can be beneficial for preserving certain items, they can also trap moisture, leading to mold growth, rust, and other forms of deterioration, particularly for organic materials.
- Plasticizers and VOCs: Many plastics contain plasticizers to make them more flexible. These plasticizers can leach out over time, contaminating the contents and leaving the plastic brittle. The release of VOCs can also affect the air quality and potentially damage sensitive materials.
What Can You Safely Store in Old Film Canisters?
Given the potential risks, the range of items that can be safely stored in old film canisters is limited. Dry, non-reactive, and non-organic materials are the best candidates. Examples include:
- Small, sturdy plastic components: Items like beads or small hardware made of inert plastic might be acceptable.
- Certain metal objects: Coins or metal findings, if thoroughly cleaned and dried, might be stored, but corrosion is still a potential concern, especially in humid environments. Consider adding a desiccant pack.
- Non-archival tools: For temporary storage in a workshop.
However, even with these materials, careful consideration and monitoring are crucial. Regular inspection for signs of degradation or contamination is highly recommended.
Safe Practices and Alternatives
If you choose to use old film canisters for storage, adopt the following precautions:
- Identify the Plastic Type: If possible, determine the type of plastic used in the canister’s construction. Avoid storing anything in canisters made of cellulose acetate due to the vinegar syndrome risk.
- Thorough Cleaning: Clean the canister thoroughly with a mild, pH-neutral soap and water. Ensure it is completely dry before storing anything inside.
- Ventilation: If airtightness is a concern, consider creating small ventilation holes. This can help prevent moisture buildup and the concentration of VOCs.
- Desiccants: Include desiccant packs (silica gel or similar) to absorb any moisture that may accumulate.
- Regular Inspection: Regularly inspect the canister and its contents for signs of degradation, corrosion, or contamination.
- Archival-Grade Containers: For valuable or sensitive items, invest in archival-grade containers specifically designed for long-term storage. These containers are made from inert materials that will not harm your belongings.
Alternatives to Film Canisters for Storage
For most items, safer and more reliable storage options are available. Consider these alternatives:
- Archival-Quality Boxes: Made from acid-free cardboard or polypropylene, these boxes are designed for long-term storage of documents, photographs, and other valuable items.
- Plastic Storage Containers: Opt for containers made from inert plastics like polypropylene (PP) or polyethylene (PE), which are less likely to degrade or release harmful chemicals. Look for containers labeled “archival safe” or “food grade.”
- Glass Jars: Glass is an inert material that will not react with stored items. Ensure the jar is properly sealed to prevent moisture buildup.
- Specialized Storage Solutions: Depending on the type of item you need to store, specialized storage solutions are available, such as coin holders, stamp albums, and jewelry boxes.
FAQs: Unveiling the Nuances of Film Canister Storage
Here are answers to frequently asked questions about the safety of storing items in old film canisters:
FAQ 1: Can I store photographs in old film canisters?
No, it is strongly discouraged. The potential for chemical residue, off-gassing, and moisture buildup makes it highly risky for photograph preservation. Use archival-quality photo storage boxes or sleeves instead. Photographs are particularly vulnerable to damage.
FAQ 2: Is it safe to store food in old film canisters?
Absolutely not. The plastic may contain harmful chemicals that can leach into food. Furthermore, thorough cleaning is difficult, and the risk of bacterial contamination is high. Always use food-grade containers for food storage.
FAQ 3: Can I store electronic components in film canisters?
Potentially, but with caution. Ensure the components are clean, dry, and static-sensitive components are protected with anti-static packaging inside the canister. Regularly inspect for corrosion. Consider using purpose-built anti-static storage containers.
FAQ 4: How can I identify the type of plastic used in a film canister?
Identifying the plastic type can be challenging. Look for recycling symbols on the canister. “PS” indicates polystyrene, “PP” is polypropylene, and “CA” could indicate cellulose acetate. If unsure, err on the side of caution and avoid storing sensitive items. Lack of identification means assuming the worst.
FAQ 5: What is “vinegar syndrome,” and why is it a concern?
Vinegar syndrome is the degradation of cellulose acetate film and plastic, characterized by the emission of acetic acid (which smells like vinegar). The acid can damage the film or plastic itself, as well as nearby materials, making it a serious threat to archival collections.
FAQ 6: How do I clean an old film canister effectively?
Wash the canister with a mild, pH-neutral soap and warm water. Rinse thoroughly and allow it to air dry completely. Avoid harsh chemicals or abrasive cleaners, which can damage the plastic. Ensure complete dryness to prevent mold.
FAQ 7: Can I use old film canisters for seed storage?
It’s not recommended. While seemingly airtight, the potential for moisture buildup and chemical residue contamination can harm seeds and reduce their viability. Use specialized seed storage containers or airtight glass jars.
FAQ 8: Are black film canisters safer than clear ones?
The color of the canister itself doesn’t necessarily indicate a higher level of safety. The key factor is the type of plastic used and the canister’s condition. Black canisters may offer some protection from light, but the other risks remain.
FAQ 9: What about using film canister lids for other purposes?
The same cautions apply. If using the lids, ensure they are clean, dry, and made of a relatively inert plastic. Avoid using them for food storage or in contact with sensitive materials.
FAQ 10: How long can I safely store items in old film canisters?
There is no definitive answer. The safe storage duration depends on the canister’s condition, the stored item, and environmental factors. Regular inspection is crucial, and long-term storage (years or decades) is generally not recommended. Expect degradation over time.
FAQ 11: Can I store film in old film canisters?
For short periods and only if the film is properly protected in acid-free sleeves. However, for long-term archival storage of valuable film, invest in specialized film storage containers designed for that purpose. Old canisters are a short-term solution at best.
FAQ 12: Where can I find archival-quality storage containers?
Archival-quality storage containers can be found at art supply stores, photography stores, archival supply companies, and online retailers specializing in archival materials. Look for products specifically labeled “archival safe,” “acid-free,” and made from inert materials. Invest in quality for peace of mind.
By understanding the potential risks and adopting safe practices, you can make informed decisions about whether to repurpose old film canisters or opt for more reliable storage solutions. For valuable or sensitive items, prioritizing archival-quality materials is always the best course of action.