100 to 120 grams.
A cup belongs to the cooking measures of a "volume". A cup is 8 U.S. fluid ounces or one half U.S. liquid pint, that is about 237 mL. A cup is 8 Imperial fluid ounces or one half...
well water weighs one gram per milliliter, so 270g is 270 ml and a cup of water 240ml, so the answer is roughly 1 and a quarter of water...other ingredients depending on densitys and being...