How do I store the water samples? Jean Andersson August 17, 2021 10:40 Updated Please make sure that the sample vessel is fully closed. You can store it in the fridge but it is not a requirement. Related articles When am I expected to take water samples? Can I keep the device at the end of the test period? How do I return the water samples? What payment method should I use for Smart Refills during the Alpha Test? What is Mitte Home? Comments 0 comments Please sign in to leave a comment.