Abstract: Novel odorant compositions which are characterized by a content of one or more compounds selected from the group consisting of tetrahydrofurans of structures 1 or 2, or tetrahydropyrans of structure 3. ##STR1## wherein R can be an acyclic, where acyclic refers to a chain of at least four carbon atoms substituted with at least three methyl groups in the chain, carbocyclic, where carbocyclic refers to a ring of 5-8 carbon atoms, and with at least two methyl groups on the ring, or bicyclic where bicyclic refers to two carbon rings, each ring having between 5-8 carbon atoms fused together, substituted with at least two methyl groups, and where R.sub.1 .dbd.CH.sub.3, or higher alkyl group, R.sub.2 .dbd.H, CH.sub.3, or higher alkyl group, R.sub.3 .dbd.H, or CH.sub.3, R.sub.4 and R.sub.5 .dbd.H, CH.sub.3, or higher alkyl group.