Don't take our word for it! One of the key priorities for Glenn Beeman from Harvard Medical School's DNA Resource Core Group is to safeguard samples in optimal conditions. That's why he strives to keep his -80 freezers in top running condition. Here are Glenn's tips:

Step 1: Get your freezer cleaning set and suit up with gloves, brush and ice scraper.

Step 2: Remove ice buildup. Start on the seal on and around doors, and then inside shelves.

Step 3: Clean gaskets with a soft brush to maintain a good seal.

Step 4: *Pro tip* Lay a chamois sheet on the floor to collect ice and water.

Request a Free Freezer Cleaning Set for your Harvard affiliated lab, by contacting sustainability@hms.harvard.edu or energy@fas.harvard.edu.