Share 'Truffle ganache recipe- can someone tell me if this is right?'

Hi, I fairly new at making chocolate truffles but they are getting very popular. Basically at the minute the shelf life of my truffles are 5-7 days as I use fresh cream (which has not been boiled first) Someone has told me that if I follow the below recipe then I can extend the truffles to have a shelf life of 3 months at room temperature, is this right? Recipe 400g chocolate 150ml fresh cream…