How to Stop Raspberries From Going Bad


It often is difficult to keep raspberries, which typically start to spoil after about three days, in your refrigerator. You can eat them quickly, use them in recipes or preserve them soon after you bring them home. You can freeze raspberries by washing and drying them, putting them on a tray in a freezer for an hour until they harden, and then keep them frozen in an air-tight, heavy-duty freezer bag for up to 12 months. (See Reference 5) If you want to keep raspberries fresh in your refrigerator without spoiling, you can take steps to extend their shelf life by a few days.

Things You'll Need

  • Raspberries
  • Container for heating water
  • Thermometer (optional)
  • Colander
  • Paper towels
  • Salad spinner
  • Air-tight container
  • Go through your raspberries and discard any that appear mashed, damaged or have mold growing on them. Bad berries can compromise the freshness of the other berries; getting rid of damaged berries discourages the growth and spread of mold.

  • Heat enough water to cover your berries to a temperature of about 125 degrees Fahrenheit. At sea level, water boils at 212 degrees Fahrenheit at sea level, so you can use water that is near boiling and allow it to cool briefly if do not have a thermometer to measure the water's exact temperature. Soak your berries for 30 seconds and then drain them in a colander. The heat from the water will kill mold and eliminate other contaminants. (See Reference 2)

  • Line your salad spinner with paper towels, place your berries inside and spin the container until the berries are completely dry. Place a paper towel on the bottom of an air-tight container. Remove the raspberries from the spinner and put them in the prepared container. Store them in your refrigerator. Your berries should last at least a few more days than usual.

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