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It's hard to be absolutely certain without a specific goal for the firewood, but there are some generic things to look for: Sap: Sap-rich woods usually produce a lot of smoke, often black or dar...
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It's hard to be absolutely certain without a specific goal for the firewood, but there are some generic things to look for: Sap: Sap-rich woods usually produce a lot of smoke, often black or dar...