Why make homemade mayonnaise when you can buy ready-made? That’s a good question. Today, stores offer a huge variety of mayonnaises – even organic versions, ones with olive oil, or without preservatives. If you use mayonnaise only occasionally, an occasional store-bought portion probably won’t harm you. But if you like mayonnaise and use it regularly – or would like to, but have doubts about its health effects – read this post till the end. Mayonnaise is basically a very simple product: oil, egg, mustard, and vinegar or lemon juice. The problem is that 99% of store-bought mayonnaises use refined oils such as rapeseed (canola) or sunflower oil. While cold-pressed sunflower…