Castelão

Castelão is a Portuguese black grape whose style can shift with climate and crop level. Warm, dry sites in the south—especially old sandy vineyards around Palmela—can produce structured wines with tannin, acidity and redcurrant or plum notes. Cooler sites can yield more delicate wines. DNA-based Portuguese records identify its parentage as Cayetana Blanca and Alfrocheiro Preto.

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Trincadeira

Trincadeira is a Portuguese black grape whose success depends on ripening healthy fruit. The vine is vigorous, and its thin-skinned berries are vulnerable to rot; in cooler or wetter conditions it may fail to ripen fully. When ripe, Portuguese wine sources describe raspberry, pepper, herbs and floral complexity, with colour and good acidity. In the Douro it is known as Tinta Amarela.

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