I’ve tried several loosener methods together with a swing cage extractor.: hand held Mountain grey perfextractor with thin tightly spaced long metal pins- the most effective of everything I’ve tried, but no longer available unless lucky to see one at an auction; the Abelo one featured above ( works but messy as plastic pins are too thick, bees repair any damage to cell walls) ; a Swienty metal hand held roller a friend lent me (pins too widely spaced and makes a mess)
I saw the Humblebee one and also phoned the company like
@Wilco . I suspect the roller ‘teeth’ are too short to loosen down to the midrib. Be interested in anyone trialling it.
Found overall loosening works if you have a blend of heather and other honey, but scraping back to the midrib (wired foundation best) or cutting comb out (unwired) and pressing, is the effective way to process purer heather
Also, if combs are newly drawn there is a high likelihood of comb damage after loosening with one of the devices, even if use a tangential or swing cage. New combs need a few seasons to toughen up to withstand the weight of honey and the spinning, unless it’s a good blend of honies and you take it very slowly and repeat loosening, then takes a long time to get out.
I harvested around 450lbs of heather / heather blend honey this year and it’s a pain in the butt!