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  When Is A Blueberry Ripe

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Session Five:  
Handling Fruit After Harvest

picture of girl picking/harvesting blueberriesThe best time of day to harvest blueberries is in the morning.  The temperature is lower, the berries are cooler and it is easier to refrigerate them once you get them harvested.  Also in the morning the berries are turgid, full of water and at the peak of quality.  And lastly, it is a more comfortably time of day in which to harvest. 

The berries on a given blueberry bush should be harvested once a week.  A good way to harvest blueberries is to roll the berries with your thumb in the palm of your hand (pictured below). This does several things.  First of all it keeps you from crushing the fruit.  Secondly, it's easier to tell which berries are ripe; a ripe berry will separate easily from the stem, whereas unripe berries cling tightly.  And third, it keeps you from disturbing the waxy bloom on the fruit.  This waxy bloom makes the fruit more attractive and also slows down the loss of water once the fruit has been harvested. Picture of technique of how to pick blueberries by rolling them off the stem with your fingers

Blueberries are perishable and care after harvest is very important.  As the berries are dark, they heat up rapidly if left in the sun.  As soon as you can after picking them find a shady place to leave them and get them to refrigeration as soon as possible.  Refrigerated blueberries will last varying lengths of time depending on the temperature.  If stored at 32 degrees, berries should be in good shape after two weeks of storage.  At 40 degrees, they will last about a week, but if left at room temperature they will start to decline in quality at after only two days.  REFRIGERATION IS VERY IMPORTANT.