How long does the seal on a casket last?

The seal on a casket is designed to be airtight and can last for several years, potentially ranging from 15 to 50 years, depending on the materials used and environmental conditions. However, factors such as soil composition, moisture, and temperature can impact the seal's effectiveness over time. It's important to note that while a seal can slow down decomposition, it doesn’t completely prevent it. Ultimately, the longevity of the seal can vary widely based on specific circumstances.