Efficient Tips for DNA Storage and Preservation

The Importance of Proper DNA Storage

When it comes to storing DNA, proper storage techniques are crucial. DNA is the genetic blueprint that makes us who we are, and it contains a vast amount of information about our health, ancestry, and other important characteristics. However, if not stored correctly, DNA can quickly degrade or become contaminated, rendering it useless for future research or analysis.

In this blog post, we’ll explore the best practices for storing DNA samples safely and securely for long-term use.

Choose the Right Storage Containers

One of the most critical aspects of proper DNA storage is choosing appropriate containers. A good container should protect against moisture and UV light while preventing contamination from other substances like dust or bacteria.

Plastic tubes with screw caps are a popular choice because they’re easy to use and provide an airtight seal when closed properly. Glass vials with snap-on lids also work well but may be more fragile.

It’s essential to label your tubes clearly so that you can identify them later on. Avoid using permanent markers as they may fade over time; instead opt-in for specialized labeling products like cryo markers or barcode labels designed exclusively for lab purposes

Use Appropriate Preservation Techniques

Proper preservation techniques prevent degradation by slowing down chemical reactions that break down specific parts of the strands holding your samples together. The key is to keep them at low temperatures below -80°C (-112°F) until you’re ready to analyze them further.

There are two main types of preservation methods: freezing in liquid nitrogen (LN2) tanks or storing in special freezers called ultra-low temperature (ULT) freezers equipped with alarms/alerts triggered whenever temperatures rise above safe levels indicating malfunctions in cooling systems inside units being used such as power outages etcetera – both methods extend shelf life up significantly if done right!

To minimize oxidative damage during storage, it’s recommended to add a cryoprotectant like DMSO or glycerol before freezing your samples.

Store DNA in Multiple Locations

It’s advisable to store duplicates of your DNA samples in different locations. That way, if something happens to one set of samples or the facility is compromised, you have backup copies that can still be accessed for research purposes.

Ideally, these facilities should be independent of each other and located far apart from one another so that natural disasters don’t affect both sites simultaneously. Many researchers keep their primary specimens at an on-site lab while storing additional backups elsewhere (e.g., university labs or commercial biobanks).


Storing DNA correctly is essential for ensuring its longevity and usability in future experiments and analysis. It’s critical to choose the right storage containers, use appropriate preservation techniques such as low-temperature freezers or liquid nitrogen tanks with cryoprotective additives like DMSO/glycerol when possible! Storing duplicates in secure locations adds extra peace-of-mind when handling valuable genetic material & maintaining accurate records by labeling tubes carefully will help you keep track where things are stored too!

Share this post: