I was wondering if anyone had any tips on getting aphids off my harvested broccoli head. I've tried soaking it in warm water with a little vinegar and that got some aphids off but when I look under the florets I still see more aphids inside. I also tried swishing the head around in water many times and I get a few aphids every time but there are still some left after trying this about 10 times. Is there a better way? Am I going to have to cut the broccoli into smaller pieces and blanch it to get them all to come off or is this also not likely to work?