I am sitting here with a typical package of brandy beans containing 24 beans or e200g whereof 4g is pure alcohol. That means one brandy bean contains 4g/24 = 0.166666667g of pure alcohol.



A person is usually considered drunk with a BAC (Blood Alcohol Concentration) above 0.06 - 0.10 % this is when among other things your reasoning ability, reflexes and peripheral vision starts to be noticeably impaired.



A grown up man weighing 80kg eating 14 packages of brandy beans (336 beans or e2800g) containing 16g of pure alcohol would have a BAC of:



16 / (80 * 0.68) = 0.102941 % BAC



Then you would need to take into account that while consuming the beans the alcohol is metabolized in the liver at rate of about 10g pr hour, up to about 30g pr hour if he consumes large amounts of alcohol regularly. Moreover the large amount of chocolate consumed along with the alcohol slows down the absorption to the bloodstream.



This means that it is very difficult to get drunk from eating brandy beans, you would need to eat at least 3kg over a short duration of time. However if you were to drink only the contents and throw away the chocolate you should be drunk after about 14 packages of course depending on your sex and weight.