Italian Whole Black Summer Truffles (Tuber Aestivum vitt.) preserved in water and salt. Shelf life of 36 months. Summer time is when we are able to harvest the black truffle with a more subdued flavor than what it has in the winter. Buying Whole Black Truffles in Jar makes it easy to use them by slicing or mincing them. They can be added right on top of sauces, omelets, risottos or puree them to spread them further.