[‘Do not crush berries when stirring to avoid murky sangria and overly sweet flavor.’, ‘Use cinnamon sticks instead of ground cinnamon for subtle warmth without grit.’, ‘Overnight steeping yields best flavor, but minimum 4 hours is acceptable.’, ‘Add sparkling water last to preserve fizz.’, ‘Use fresh berries for best texture and aroma; frozen berries can be added just before serving.’, ‘Adjust sweetness with simple syrup or lemon juice as needed.’, ‘For less alcohol, reduce wine to 500 ml and increase sparkling water.’, ‘Leftover sangria can be stored covered in the refrigerator up to 2 days; add fresh sparkling water before serving again.’, ‘To serve warm, remove soda and gently heat on low, garnish with cinnamon stick.’]