Seeing the wild berries starting to get ripe inspired me to make a scouting trip to a thicket I have permission to harvest. It is in the "way back" cow pasture and requires an expedition. So, I got there and it was "Oops! I only brought two buckets". Elder ripens on the older wood first and these were some old bushes.
I couldn't get any of these in the picture. I'll need to go back with a ladder. That's a bush on a mound with blackberry brambles and stinging nettle under it. I gathered from bushes down in the ditches, crawling in along cow trails. I'd fill my two gallon bucket then clip the florets off the bigger stems into the five gallon bucket, to get them to pack tighter, then press them in. I filled the big bucket that way.
It took over night to freeze them. then when I started destemming, in my usual way, I could see that it was just taking too long. I wouldn't get them done before I'd have more ripe ones to gather.
Commercial growers use a tumbler to destem. I bought this wire mesh waste basket for a $1.50 at Dollar General, put it into the two gallon bucket, and I could just rattle and rub the frozen stems around in it and all the berries would drop off and fall through the mesh.
It took about 98% of the stems off in minutes. I saw another basket with a much finer mesh, one the berries won't go through, at another store. I'm going back for it and see if it won't do to sift all the really fine pieces of stem through. It would probably be good for sifting perlite too.
I'm going to try a float too. Neither the stems nor the berries float but, I think, if you put them in enough water so they can move freely the fine stems will settle to the bottom and you can scoop the berries off with a strainer. I don't want to try that till I'm ready to start cooking them down because if you put the berries back in the freezer wet they freeze together into a brick that won't pour into the pan. Not a big deal, it just makes them harder to handle when you start cooking, and that's already hard enough. You drop a brick of berries into a pot of hot juice, and have it splash all over the kitchen, just once, and you learn that berries, like camels, shouldn't be bricked.
Anyway, forget your hair pick, this is the quick and easy way to get elderberries off the stem.