Food Photography: charge by time or per item?

[delhi]

Hello,
I'm wondering what is the best practice to charge in terms of food photography? A complete session say 4hrs which equates to $xxx or $xx per dish?

[Uhland]

I would do time unless they asked for per dish pricing.

[KarlMarsh]

Food photography is paid for by the shot. A good shot for a demanding client will take about half a day. The photographers make all the money and food stylists do all the work.

[PhotosGuy]

Photography Rates (http://photography-on-the.net/forum/showthread.php?t=324925)