Fit for A Monkey

I ran across a curious tea bag the other day.  Being part of British culture, individual tea bags in envelopes seem to collect in this house like those little packets of salt and sugar.  They come in goodie bags for races, samples through the post and from hotel rooms no doubt. 

I was perplexed to read the following on the bag branded PG Tips:

PG tips

3 Steps to brewing the best cup of PG tips tea. 

Brewing methods may vary but we suggest:

Use one bag per 250ml of freshly boiled water

1.  Allow the tea to brew for 1-2 minutes or to preferred strength, then remove the tea bag.

2.  Always use fresh milk where possible.  And there you have it, a delicious brew fit for a monkey.

What on earth did they mean by that?  Thank you, Internet, for solving yet another mystery (and are there no bounds of imagination used by advertisers?).