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  • I pour a couple of mugs worth of boiling water in it while it's still hot and runny. The wax stays on top of the water, the grime settles to the bottom of the wax but above the water. Slide a knife round the edge, the puck comes right out, then you shave the grime off the bottom. Surprising how well it works, but yes you'll lose a small amount of wax and any additives. How much is relative to how big your puck is.

  • pour a couple of mugs worth of boiling water in it while it's still hot

    Exercise caution here, if the wax is over 100°C the water can flash boil and spray the house with scalding molten wax. Of course, it shouldn't be and it won't be if you're using a bain-marie, but it's easy to overheat the wax if you're using direct heat.

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