This morning I have had a look at the milk treated wood and I am happy to say that it is looking good.
Despite the fact that the wood seems totally dry the darkness of the wood has not faded, there is no odour and the wood seems proof against penetration by both cold and boiling water.
I think that - where practical - my treatment for any cups and bowls I make in the future will be as follows.
Once the wood is dry after it has been carved I will put it in a pan with enough cold full milk to cover it then boil/simmer it for 2 hours.
I will then let the item sit, full of the hot milk, until it is cold. Once cold I will remove any excess milk from the surface and buff the wood to a deep, warm, glow.
Job done!
It could be that it does not need the 2 hours or the sitting full of milk until cold but my research has suggested this is the best way forward for full penetration and avoiding cooling cracks and it seems to work!
Note the remains of some milk solids around the Kuksa handles - needing a thumbnail to scratch them off!
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