Rendering and selling beeswax
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What you already have
Every frame you uncap produces cappings. A settling tank separates most of the honey out. What is left is clean new wax, which is the most valuable kind, because it has never held brood and renders pale and fragrant.
Old brood comb also renders, and it gives dark wax with a stronger smell. Both have uses and they are not the same product.
Rendering
Melting wax and separating it from debris. Gentle heat, because wax scorches and discolors long before it does anything else, and scorched wax cannot be un-scorched.
Cleaning it properly
eXtension's practical answer for clean wax: filter through a felt maple syrup filter, then through a paper towel, warming carefully and avoiding overheating.
Two passes matter more than one hot pass. The first takes the obvious debris, the second takes what you cannot see, and the difference is visible in a finished candle or balm.
What it is worth
Wax sells for considerably more per pound than honey does, and you produce far less of it. The useful framing is not wax against honey, it is that a harvest produces two products and people often only sell one.
Remember what it cost the colony: bees spend roughly eight pounds of honey per pound of wax. Wax you render from cappings is honey already converted. Wax from drawn comb you could have reused is a choice, and usually the wrong one.
Where it leads
Wax is the entry point into three more products. Candles are the obvious one and they need containers. Balms and salves need tins or tubes. Both sell at margins honey does not reach, and both are made from something you were discarding.