Mulled wine Poland, "grzane wino " ("heated wine"), or "grzaniec" in highlander dialect, is very similar to the Czech variant, especially in the southern regions. There is also a similar method for preparing mulled beer or "grzane piwo" which is popular with Belgian beers because of the sweet flavor of that particular type of beer, which uses the same spices as mulled wine and is heated. In Portugal, mainly in the Douro and Minho Provinces it is called "vinho quente" and made with Madeira wine and Port wine, in the Porto region Porto Quente is more popular. In Romania, it is called
Madeira wine up large (112 gal/423 l) casks of wine known as "pipes" for their voyages to India. The intense heat in the holds of the ships had a transforming effect on the wine, as discovered by Madeira producers when one shipment was returned to the island after a long trip. The customer was found to prefer the taste of this style of wine, and Madeira labeled as "vinho da roda" (wines that have made a round trip) became very popular. Madeira producers found that aging the wine on long sea voyages was very costly, so began to develop methods on the