Cardamaro is a digestif amaro based on Piemontese Moscato wine flavoured with botanicals – most notably Cardoon (Cynara cardunculus), a thistle-like...
I recently acquired a Coravin pivot, which has reusable stoppers that you use to replace whatever closure the bottle came with. Working well so far, though I still keep my vermouths and amari in the fridge. They claim keeps wine for a month (no mention of needing to refrigerate) , so I imagine vermouth will keep for several months. Have only had it about six weeks now. Handy and easy to use.