Ooni Karu 16 L'essentiel En Bref page 25

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2. Refuel when the wood has mainly burnt to embers but
before all visible flames have disappeared.
3
3. Add fuel little and often and do not overfill - wood must not
overflow the grate.
It is normal to see smoke when cooking with wood. Ooni Karu
16 will burn cleanly and with minimal smoke when running at
optimum temperatures.
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