I think a better potential "red flag" is more things present that are clearly out of season, as some restaurants clearly use trendy market jargon like "farm to

I think a better potential "red flag" is more things present that are clearly out of season, as some restaurants clearly use trendy market jargon like "farm to table" simply to boost prices and/or for marketing. Central Florida's season for vegetables is the winter. Summer is too hot for growing most things, the main things in Central Florida that are in season during that time are citrus. Some vegetables and fruits don't really grow here at all. Some do grow but do kind of poorly. Sure, a climate controlled indoor hydroponic farm can grow produce that is an "exception to the rule", but the Tampa area only has a couple (one?) of those. Definitely not enough to cater for all the restaurants that claim "farm to table". So seeing out of season "farm to table" vegetables would be a bit of a red flag. The same with animals. For instance the trout mentioned in the article would be a potential red flag of sorts, as Florida doesn't have rainbow trout. Florida does have "spotted sea trout" but that's a different species of fish, and the commercial harvest of that in Florida is rather limited. You can apply this rule to other climates, of course.