If the truffle is not to be consumed immediately, it is advisable to store it in its original soil, without cleaning it (The truffle must be cleaned carefully when you intend to consume it). Store it in the fridge with some absorbent paper or kitchen paper and place it in a glass or plastic jar with an airtight seal, then place it in the fridge at a temperature between 4 and 5°C. The absorbent paper is useful because the truffle is mostly composed of water, which will be absorbed by the paper and will prevent the growth of mold. One very important thing: change the paper at least every 2 days (although every day would be better), until the moment of consumption.