You want to look for an eggplant that is not too large, feels firm to the touch, has evenly colored skin and feels heavy for its size. Avoid eggplants with wrinkled skin or brown spots. The larger eggplants tend to have more seeds inside, which can be bitter and change the texture of the dish. Sticking to a smaller eggplant is the way to ensure that you will have a delicious meal. Eggplant can last about 3-4 days in the fridge once you bring them home before the skin starts to get wrinkled and the green top starts to turn brown.