Apparently it's not safe to make your own garlic oil. Kept at room temperature it could be a source of botulism as garlic is grown in alkaline soil where chlostridium botulinum is present.
My garlic 'bible' written by the Boswell family from the Isle of Wight Garlic Farm states that it's OK to make it in vegetable oil but NOT olive oil and it should only be stored in the fridge.
Miraculously, I haven't poisoned anyone yet but I'm debating whether to throw out this year's supply. 
Mandelson failed security vetting. Starmer says he didn’t know





