This jar of peanut butter costs $761 and you aren't supposed to eat it

BB no-prize contest: Write TV commercial jingle lyrics for "Standard Reference Material No. 2387" peanut butter.

This peanut butter isn't actually intended for your mouth (rude, I know), but to be fed into laboratory gadgets like gas chromatographs and mass spectrometers. Smart people then use it to establish an industry-wide standard to which similar food products can be compared.

Oh good, here's that $761 jar of peanut butter you asked for