Is there really truffle in truffle oil? Are preserved truffles any good?
Recently we were asked to help investigate a possible case of food fraud for BBC 1 Rip Off Britain. Aired on the 5th of June 2017, the programme revolves around a jar of truffles preserved with oil that had a surprisingly odd aroma. The Rip Off Britain team sought Dr Paul Thomas’ help to test for truffle spores and truffle DNA.