I’ve just agreed to buy a few pounds of unheated honey.
A friend says that I am wasting my money as it will crystallize before I can use it.
Can I freeze it? Or is there some other way to make it last? Or if it crystallises, can I melt it again somehow?
Honey can be liquified by placing the jar into a pan of hot water. Sometimes this takes awhile but it does work.
Or nuke it for a few seconds.
Pure honey crystallizes, that’s all there is to it. It doesn’t hurt the taste or quality at all - it’s just changing its form for a bit.
Of course, if you use as much honey as we do around here you never acutally GET to the crystallizing point 
You can re-melt crystallised honey by putting it in the microwave for a few seconds, be careful not to overdo it though; boiling hot sugar can be very nasty.
And crystallizing and nuking repeatedly does nothing to harm the flavor, IMO, i’ve been doing it for years. What it DOES do is f-up any plastic container it might be in. I keep al mine in glass jars, then when I have to nuke it it’s safe.
That way, you have to use a spon to get the honey out, and consequently, you have to lick the spoon. Yum.
b.
I just opened up a new tub of honey, and there was a layer of white … something on top.
It’s like a foam, with very small bubbles in it.
It’s about three millimetres thick, and it first galnce it looed like yogourt, until I looked a little closer.
I dug down, and there’s more conventional-looking honey underneath.
Is this okay to eat? It’s not like your usual crystalliztion, in my experience.
Wolf your honey is fine, those are just bubbles that havent popped yet and may never pop since they are so small and in honey.
if you have honey in a plastic container use the hot water method, place in a big pot of boiling water (take it off the stove or make sure the plastic doesnt contact the bottom of the pot) with a lid if possible. this if corse depends on the size of your honey jar, I got mine at costco so it takes quite a bit of water.
The easiest way to stop honey from crystallising in the first place is to store the jar of honey upside down (this also works with foods which have a tendency to gather mould around the lid, such as apple sauce).
Or you could just go the route of a culinary philistine and add a teaspoon or two of water to your honey. Honey is typically ~82% sugars by weight. Reducing that percentage even slightly will bring about a large decrease in the likelyhood of crystal formation. Of course if you add too much water (sugar content below ~70%) you end up encouraging mold growth…