Honey is only one product a colony can yield. A trap fitted across the entrance brushes pollen pellets off returning foragers' legs into a collecting tray, while bees instinctively seal draughts and gaps in the hive with propolis, a resin they gather from tree buds. Both can be harvested and sold — but neither is free money: trapping pollen competes with the colony's own larval food supply, and stripping propolis makes the bees rebuild sealant they'd rather have kept.
Dried bee pollen and raw propolis can fetch several times honey's price per kilogram in niche markets, but typical UK yields are small — often under a kilogram of pollen and a few hundred grams of propolis per hive per year — so both work best as a diversified sideline rather than a replacement for honey income.
A 3D apiary where a pollen trap catches pellets off returning foragers, a hive weeps harvested propolis, and a live bar chart converts realistic yields into pounds per hive and per year.
Pollen-trap coverage and propolis-harvest intensity both raise side-income, but at the cost of a colony-stress penalty that quietly drags down the honey crop — the trade-off the article's "not free money" argument is built on.
Set hive count, pollen trap coverage and propolis intensity, then compare wholesale vs niche direct-to-consumer pricing. Toggle the stress penalty off to see the idealised (and misleading) "extra income for free" view.
Niche-market propolis and pollen can sell for several times honey's price per kilogram, but typical UK per-hive yields are small — which is why both work best as a diversified sideline, not a replacement for honey income.