Storage. Studies conducted by the Flax Council of Canada show that coarsely ground flax seeds can be stored at room temperature for up to 10 months, without spoilage or loss of the omega-3 fatty acid, ALA.Click to see full answer. Consequently, does milled flaxseed go bad?When properly stored, the shelf life of flax seeds beyond their best-by date is approximately Flax seeds have a mild nutty taste, if there is a bitter taste then your flax seeds have gone bad and should be tossed out.One may also ask, what is milled flaxseed good for? When it comes to adding flaxseed to your diet, the best way to do this is by eating milled flax seeds. Milled flaxseed is also a great source of lignans, which are a powerful antioxidant that helps your body maintain a healthy blood cholesterol level. Furthermore, how do you know when flaxseed gel has gone bad? A week or two in the refrigerator without a preservative or a few days if left out on the counter. If you’d like to add a preservative that can make it last appx. 6 months, check out this one here. Warning: You’ll know the Flaxseed Gel has gone bad by the smell.Is milled flaxseed the same as ground flaxseed?Whole-milled means that the whole flaxseed was used to create the final product. The whole flaxseed was ground into a fine powder that contains its natural oils and healthy fats. Whole-milled flaxseed can also be called ground flaxseed.