Quick Answer
Containers made of galvanized steel, lead, and untreated plastic are generally not safe for water storage due to leaching toxins.
Unsafe Materials for Water Storage
When selecting containers for water storage, it’s essential to avoid materials that can contaminate the water. Galvanized steel containers, for instance, can leach zinc and iron into the water, making it unsafe for consumption. To minimize the risk, use galvanized steel containers with a thick layer of protective coating, but be aware that this layer may still degrade over time.
Plastic Containers
Not all plastic containers are created equal. Untreated plastic containers can leach chemicals such as BPA, phthalates, and antimony into the water. Look for containers made from food-grade, high-density polyethylene (HDPE) or polypropylene (PP) with a thickness of at least 1/8 inch. Additionally, avoid using plastic containers with scratches or cracks, as these can provide a pathway for bacteria and other contaminants to enter the water.
Best Practices for Safe Water Storage
To ensure safe water storage, it’s crucial to follow best practices when selecting and using containers. Always choose containers made from safe materials, such as food-grade stainless steel or BPA-free plastic. Regularly inspect containers for signs of damage or wear, and replace them as needed. Additionally, consider using a water purification system, such as a filter or UV purifier, to further protect against contaminants.
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