Crumbles happen

April — the (unofficial) Month of Sauna Stones

Now you know — rocks crumble. When they crumble in your sauna stove (the kiuas), the grit clogs up the air spaces between the rocks piled inside. With poorer air circulation, the stove heats less efficiently.

Bernhard Hillila wrote about sauna rocks in his book The Sauna Is. He said, “If they can’t stand the

heat, they ought to stay out of the kiuas.”

When you sweep up the crumbles, take time to check your stones. Are they holding up?

Nikki