Is it the comb or the wax itself? Similarly to Bill, I use a solar melter and no matter how old & black old comb I put there, the melted wax comes out always the same, pristine light yellow color. I understand that it may not be chemically wax pure and there might be some lipo-liking compounds dissolved in the wax, but still the color stays the same and doesn’t darken. Or am I missing something?

Przemek

> On Jul 11, 2019, at 5:13 PM, Pete B <[log in to unmask]> wrote:
> 
> […]
> 
> The darker colour wax may contain a collection of
> undefined contaminants accumulated over time. The huge turnover and shifting rate of wax is also evident given the fact that brood cell cappings in nests containing old and darkened combs are nearly as dark as the combs themselves. In the white combs of newly established swarms, the cappings are only slightly discoloured.

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