For dried DNA extracts, what storage condition is advisable?

For dried DNA extracts, it is advisable to store them under temperature-controlled conditions. This approach helps preserve the integrity and stability of the DNA, minimizing the risk of degradation that can occur due to fluctuations in temperature. Maintaining a consistent environment limits exposure to extreme heat or cold, both of which can negatively affect the genetic material over time.

Storing DNA at room temperature, while convenient, poses risks because environmental factors such as humidity and temperature changes can lead to the hydrolysis of nucleic acids or other forms of degradation. Freezing can also be problematic if not done correctly, as repeated freeze-thaw cycles can break down DNA. While refrigeration can be a stable option for short-term storage, temperature-controlled environments provide a broader assurance for the long-term preservation of dried DNA extracts.