Air-cured.

CFR · 2024-01-01 · US · Title 7

Tobacco cured under natural atmospheric conditions. Artificial heat is sometimes used to control excess humidity during the curing period to prevent house-burn and barn-burn in damp weather. Air-cured tobacco should not carry the odor of smoke or fumes resulting from the application of artificial heat.

official document · source cfr-2024 · id 7:§ 29.3002