Don't Make The Mistake Of Using The Wrong Knife To Slice Acidic Food - Tasting Table
Briefly

Cutting acidic foods like tomatoes and citrus with a regular knife can cause corrosion; use serrated knives to protect kitchen knives and achieve better slicing results.
Using a serrated knife helps maintain the integrity of tomatoes while slicing. The knife's grooves easily cut through skin without squeezing out juice, resulting in even slices.
While serrated knives aren't all equal, any available one will suffice for preserving your best knife. They can be used effectively to slice various acidic foods.
For slicing tomatoes, place it stem side up to remove the core, then cut halves flat-side down to achieve stable cuts, ensuring neat slices and diced outcomes.
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