how long to peanuts stay good for
by: Bret. Sirezen,When refrigerated, boiled peanuts stay fresh for about 7 to 10 days. Frozen boiled peanuts are good for at least 6 months, perhaps up to one year. Boiled peanuts must be refrigerated or frozen or they will spoil quickly.Think of them as boiled beans, since peanuts are legumes.Water quality can affect the texture of boiled peanuts if the water is full of minerals, so called hard water.rozen boiled peanuts are good for at least 6 months, perhaps up to one year. Boiled peanuts must be refrigerated or frozen or they will spoil quickly. Think of them as boiled beans, since peanuts are legumes.Water quality can affect the texture of boiled peanuts if the water is full of minerals, so called hard water.