I store all walnuts in the freezer - from the moment they enter the house. They go rancid otherwise. But I have noticed that , when stored in the freezer, they do last a LONG time. Well over a year. So I would never consider storing them outside the freezer, even for a day!
Like all seeds/nuts walnuts will go rancid over time because of oxidation of their oils. Walnuts seem to go faster than, say, almonds. So if you buy a bag and aren't going to use them in a week or two after opening, freeze them. They'll last a lot longer that way, but obviously not 'forever.'
My experience with frozen/cool walnuts -- *warm* walnuts have nuance and depth of flavor. There's a sweetness to them. You can sort of taste some of the fat / oils, giving them a smoothness in your mouth. Cool/cold nuts may be crunchy, but I find that when they're cold/chilled the main flavor is 'bitterness' ... they have to warm up before they 'taste good' again.
That reminds me that I need to buy more walnuts!
Fitness Minutes: (11,285)
2,764 1/18/13 1:31 P
Fitness Minutes: (33,630)
5,088 1/18/13 11:01 A
Of course they can spoil. Did you happen to freeze them after their expiration date?
Fitness Minutes: (4,677)
200 1/18/13 10:57 A
We had some walnuts in the freezer. I took the unopened bag out last night. This morning I opened the bag and measured an oz to have with breakfast and they tasted AWFUL. i LOOKED ON THE BAG AND THEY WERE 'BEST BY' OCTOBER 24. CAN WALNUTS ACTUALLY SPOIL?
SparkPeople, SparkCoach, SparkPages, SparkPoints, SparkTeams, SparkDiet, SparkAmerica, SparkRecipes, DailySpark, and other marks are trademarks of SparkPeople, Inc. All Rights Reserved.
SPARKPEOPLE is a registered trademark of SparkPeople, Inc. in the United States, European Union, Canada, and Australia. All rights reserved.