Also above, and part of the preparation, is the blender DH's parents passed on to him when he moved out in 1986. We don't know the year, but it is an Osterizer Galaxie model. With a new gasket for the bottom of the glass part, it has served us well since. After a quick blend, I poured the blackberries into the press and lightly rolled around the wooden roller. It quickly drained and the seeds actually stuck to the roller, photo below, which made them very easy to wipe off. Much better than the sieve I've used in the past.
To finish up the sauce, I heated the blackberries, sugar and a little cornstarch in a saucepan. It was good enough that I didn't complain too much about picking a few remaining thorns out of my hands this morning.
I've heard this press is great for apple sauce too. We should have some apples ready about the time we tired of blackberries.