From Dharmachari Padmavyuha
Your article about coffee was fascinating
(29 January, p 28), but according
to your graph, milk chocolate contains almost five times as much caffeine as
plain chocolate. I’m very curious to know why—or was this an error?
This was, indeed, a mistake. The two got inverted at some point in the
production process without our noticing. They should have been the other way
round—Ed
Surlingham, Norfolk
