Dry Moss should always be stored in a dark cool place, it does not need to be sealed in the pouch bag. The salt is a natural preservative and the moss will not get bad. Never store dry Moss in the fridge, it is too moist and the salt crystals will not be able to protect the moss. You may keep your moss for good over a year.
Soaked hydrated Moss should be stored in the fridge. Use a clean glass jar or bowl and change the water every day and it will keep fresh up to 2 weeks, but will loose with time a little of its gelling property.
Irish Moss paste will keep fresh in the fridge for up to 3 weeks. Make sure that you use a clean glass jar with a lid and use always a clean spoon.
Irish Moss paste can also be frozen. It is convenient to use an ice cube tray and fill it with Irish Moss paste. When it is completely frozen, wrap it in a pouch bag, don’t keep it open. It is very convenient to have the portion size moss ready on hand when needed.