When evaluating Hibiscus Tea (Hibiscus sabdariffa), the primary quality indicators are color, cut, and moisture content. High-quality hibiscus should exhibit a deep, vibrant burgundy or ruby red color; a brownish tint often indicates old stock or poor drying processes. For B2B sourcing, you must specify the cut: Whole Calyces (Grade A) are best for premium retail, while Fine Cut or Siftings are suitable for tea bags. Ensure the moisture content is below 12% to prevent mold growth during cross-border transit, and verify that the product is free from sand, stones, and organic debris, which are common contaminants in sun-dried botanicals.