How to keep truffles?
To improve the preservation of the fresh truffle it is possible to place it on a bed of rice or absorbent paper in a Hermetic box type Tupperware. It is imperative that the truffle be placed on the rice and not immersed in it, as it may become too dry. The box should be put in the fridge in the coldest place. It is possible that despite these precautions a thin white film develops on the truffle, it does not matter. Just clean it with very fresh water, and wipe it well with a clean cloth.
Immediately after the cavage, the truffle should be brushed (cleaned) and then dried. Then insert it in a bag and make the air vacuum with a vacuum-packed device. You can easily obtain a vacuum packing machine from around 50 euros.
The professional vacuum allows to prolong the shelf life of the fresh truffles of several weeks by slowing the oxidation as well as the evaporation of the water and aromas. The truffles must be used immediately after opening.
It is this method that we use to provide you with truffles by Mailing.
Freezing is a way to enjoy the truffles outside of the season while respecting the aromas.
Freezing time: Ideal for 3 months, well 6 months, maximum possible 1 year.
You have to do this: after you have brushed your truffles, you have to dry them and then place each truffle separately in a vacuum or in a freezer bag and put them in the fridge. It is also possible to freeze the truffle cut into separate strips on a non-stick plate. Once frozen, replace the slats in a freezer bag, (beware the truffle defrost very quickly). So you take a little truffle to your needs.
After thawing, the truffle has lost its firm texture. It became spongy with a flesh-coloured praline-brown-coffee with milk-chocolate, the sterile white veins disappeared. (This is also how one finds that a truffle is frozen). It should be used instead in sauces or scrambled eggs.
Its aromas are modified but it has preserved a great taste and a good fragrance.