Thread: Unknown German water Hone

Not 100% sure on that, iam sure Hatzicho can tell something more about it.

What i can rule out is that it is an Escher stone...i also thought it might be a CLFS Christian Luthard Fikken Sohn from Steinach. Actually they used the following writings

"Qualitätswasserabziehstein"
"Whetstone of Quality"

Originally Posted by tonybee

Thanks Utopian for the low temperature oven trick, I think I'm going to give it a try tomorrow.

If you do, then understand that the stone is a heat sink. It takes quite a while for it to heat up, so give it at least an hour before trying to remove it. Keep the temperature pretty low, like around 250F or 120C. If you need to go higher I would do it gradually.

Wear gloves!

My boxed one has a similar box, If you look at the corner joins some have a direct single cutout rabbet joint. The Eschers all seem to have a Dovetail.



Because of the joint type you can pry off the box sides. They will be pinned with small steel nails. Using a twisting action away from the stone you should be able to remove the catch and hinge sides. Then work along the sides doing the same working away from the stone and they should come off as well.

With the sides off you will be able to get under the stone with something fine. Like a steel wire. Get an old block of wood. Hammer in 2 nails 12 inches apart. Then wrap the wire between the nails. A cake leveller has a thin enough wire with nice terminals for nailing. There cheap as well and available in most supermarkets.

Heat the glue with hot water/oven. Then pull the glue line through the wire to separate the rock from the base.

Do not attempt to twist the rock off the base. I split my rock in half doing this and had to glue it. You can see the line of silver glue I used to repair it in these pictures.

Once the rock is off. Clean up the box and glue it back together. I just use some foam to stop the rock from moving about in storage now.

Thanks Iceni, that kind of info is much appreciated. Good to see that your hone is still usable.

it isn't that the stone will break apart from the heat. Rocks come from heat one way or another. It's the microscopic cracks in them that are the source of the problems and every piece of rock is different so you never know. One hone you might be able to cook for days and nothing will happen and another you apply heat for 5 minutes and it could break in half.