Vegan Gouda cheese should be stored in the fridge, like most other kinds of vegan cheese. For best results, wrap the vegan Gouda tightly in clingfilm or plant-based food wrap. Then pop it in the fridge. For added protection, you can place your wrapped vegan Gouda in an airtight container. Your store-bought vegan Gouda should be good for around two weeks, whilst homemade plant-based Gouda may last 2-3 days.
Alternatively, you can freeze your vegan Gouda for up to 2-3 months without too much detriment to the texture of your cheese.