Analysis of information sources in references of the Wikipedia article "Trühvel" in Estonian language version.
...it has been known for more than a century that truffles were mycorrhizal on various trees such as oak, beech, birch, hazels, and a few others
Most commercial truffle oils are concocted by mixing olive oil with one or more compounds like 2,4-dithiapentane
The soil of the truffiere tends to be alkaline, calcareous, and well drained.
The soil of the truffiere tends to be alkaline, calcareous, and well drained.
