In a similar study, Ryback (1970) examined the impact of alcohol on memory in seven hospitalized alcoholics given access to alcohol over the course of several days. All subjects were White males between the ages of 31 and 44.
Whether you plan to eat them plain or roasted, or use them in your favorite pecan pie recipe, pecans must be shelled and cleaned before use. Start with Step 1 below for detailed instructions on how to extract the nut meats from their tough, woody shells.
But pecans can last two and half years or more in the shell. They won't taste as good, but they aren't that bad. Pecans that are pre-shelled and sold in bags throughout the year taste about the same as pecans that have remained in the shell for several years.