Paper plates are not recommended for long-term food storage. They are designed for single use and are not made to withstand the moisture and potential bacterial growth associated with food storage. Over time, the paper can absorb moisture, leading to mold and bacterial contamination. Additionally, paper plates are not airtight, which is crucial for preserving food quality and preventing spoilage. For long-term food storage, consider using airtight, durable containers made from materials like glass, stainless steel, or high-quality plastic.