I was recently asked why I confuse people by using metric.

   Actually, I am trying to avoid confusion. In the commonly used system, avoirdupois, the ounce can be a measurement of either volume or weight.
   If I say "Add 8 ounces of rice", do I mean half a pound of rice or a cup of rice? Obviously they are not the same.
   Another factor comes into this: although we were taught that "a pint's a pound the world around", this is not true. In the UK, a cup is 10 fl oz, not 8 fl oz as in the US. This means a UK pint is 20 fl oz as opposed to 16 fl oz in the US.
   So, I think that I have now established that the terms ounce, cup, pint, quart and gallon are not to be trusted from country to country.
   Since the Internet crosses the boundaries, a cookbook prepared for it needs to depend on a clear, consistent standard.
   I recall that my Pyrex measuring cup in my home in the States had avoirdupois on one side and metric on the other. That was 30 years ago. I am sure that they are easily obtained.

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