Yes. Several. I once called mama for a recipe. I took notes, repeated everything to her and she needed me on. After I prepared the dish, I knew it tasted nothing like I had tasted from her in years gone by.

Then it occurred to me that if two people prepared the exact same meal, it's still possible for both dishes to taste different. How long do you boil the vegetables? Under how much heat? Several factors come in, I guess.