Here's Why You Should Be Using White Wine In Your Tomato Sauce - Tasting Table
Briefly

White wine grape varietals like Chardonnay complement the sauce best due to their smooth and round characteristics, making them a suitable choice for tomato sauces.
Price of wine doesn't matter for tomato sauce; cheaper options work as alcohol cooks off. Consider using leftover wine to avoid waste.
Read at Tasting Table
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