Wax on bottles????

Suspend them upside-down and direct some sort of fairly high heat source at them. The wax probably has a relatively low melting point. I don't know if a hair dryer or electric room heater will be hot enough. You might need to experiment.

If all else fails, a [carefully used] propane torch should do the job...maybe using a flame spreader attachment. Heat enough to mely the wax so it drips off (onto some cardboard or something) but not so much that you risk cracking the bottles (and don't catch the waxy cardboard on fire!).

Years ago I used to make drinking glasses from bottles by scoring them with a glass cutter, then heating them with a torch to make them crack along the score-line. I suppose that if it cracks, then you probably wouldn't want to be using it anyway.

Just don't try to cool them too quickly.

I'd use lighter fluid or white gas to remove wax if that is what it really is. If it's some kind of hot-melt glue then I'd use goo-gone or

What I use for cleaning off label glue (and it will work fine on wax also) is PPG "Acryli-Clean", p/n DX330. Available at stores that sell car paint.

Eello>I have a few bottles from New Glarus that have wax on them, Belgian Red