Hmmm... I spend on average $700 a month on food. It's already an average of more than $21 per day, or more than $7 per meal on average :x
But of course, I don't spend just on myself :)
Prices of tea and coffee are going up because everyone listens to those "investment gurus" and buy up commodities. There is sufficient supply as of now, but it's just people buying and buying it up.