The white layer is just foam....air right or are you talking about something else? Typically the foam settles out soon after the extraction process. I wait atleast 24hrs in a hot room before bottling. The state fair for example, will penalize entries that have any white foam. Its a very easy thing to avoid.Some people want to see the white layer atop the honey others think of it as scum. Depends on who you want to please!
I agree. The finest filter from Mann Lake is labeled 600 micron though and the coarsest is labeled 200. I am sure that is not correct. I dont know if they are all mislabeled or only the set I have. Hole opening gets smaller as the descriptive number gets smaller in the micron system. In mesh per inch sizing system, the larger the descriptive number the smaller the particle size.600 micron is more coarse than 400 micron.