Contrary to popular belief – humidors are not intended to be hermetically sealed from the environment. Some air does pass in and out. Mahogany is a common substitute – but for reasons of aesthetics as much as function. It’s more expensive – so the reason for the change is not to lower the price. It’s more often used on the exterior because of its superb looks – with Spanish Cedar still used for the interior.
Still – some good humidors do use it as a liner and it can do an adequate job. Larger humidors – as well as lower quality ones – will sometimes substitute any number of things: plastic – synthetic wood – even metal. They should be avoided. Even in this age of miracle materials – there is still no good alternative to natural wood – especially cedar.
It doesn’t require a degree in tobacco-ology to select a fine cigar humidor – and there are many good ones available at moderate prices. Keep a few simple guidelines in mind and you’re sure to find one to suit your size requirement – and get an attractive decoration to boot.
Choice of materials is always the first consideration in selecting a good humidor. Spanish Cedar lining is overwhelmingly the first choice – and for good reasons. It has excellent moisture balance properties – absorbing water readily and releasing it again when the air inside is too dry. It also is warp resistant – making it possible to keep a good seal. Not too good – though.