Trusty Remington submersible blender, a light weight home use beast. Just don't burn it out, slow and low, or fast if there is no thick stuff. Here we have all three berries pureed, and about to introduce for an hour, and blend, some pectinase to help hopefully with cloudy, with clarity, with settling out, and juice extraction. 1 tsp per gallon, so 2 were put in, at about 60-62F.