The organization of Metlife is disgusting and sends people in circles. There is no definitive number to contact them...there are a hundred and you will get all the wrong ones unless you check back with the original employer to what contact number they may have.
To prep blackberries for making a puree: Heat the blackberries, fresh or thawed, in a saucepan over medium heat. Add 1 teaspoon of sugar and 1 teaspoon of lemon juice for every 1 cup of berries, fresh or thawed. Heat to warm the berries through, stirring as needed. Blackberry puree can be made with or without seeds. One cup of fresh blackberries produces 1/2 cup of puree, while 1 cup of thawed berries produce 3/4 cup of puree. Store the puree, seeded or seedless, in an airtight container or jar in the fridge for three to five days.
2. Spread the blackberries on a baking tray. Line a metal pan or tray with parchment paper and spread your blackberries out on it so that none are touching each other. Do not forget the parchment paper -- without it, the berries will freeze to the pan and can break up when you try to remove them.lace the blackberries into the freezer. Set your tray on a level surface in your freezer (so that your berries don't roll to one side of the tray) and allow your berries to freeze completely.