I'm not an expert, but eating and smoking are different things... I didn't read the complete post so maybe someone mentioned it before, and you should probably know this already.. But food and smoke should never be considered the same thing when it comes to consumption.
When you burn a food chemical it becomes a different chemical that was not meant to be, and goes directly into lungs where it's not meant to go. And then it quickly goes to the bloodstream, heart and brain.. The company that made the chemicals for grape and kiwi consider it safe for eating, but they don't mention smoking.. Alcohol is considered safe for consumption when you drink it, but try burning it and inhaling the fumes directly to your lungs and brain, or try putting alcohol in the eyes.. And also sugar is safe for consumption, but if you would smoke sugar fumes you would probably have caramelized lungs or something.. Eating fruit with toxic chemicals may take years to cause an illness, but smoking toxic chemicals can be dangerous immediately.. Chemicals on fruit was tested for years by professionals, experts, scientists, doctors, biologists, chemists etc. they used lab-animals and other experiments.. They created a standard for maximum allowed toxicity so it's considered safe to consume..
But how are you gonna test it all by yourself? Are you just going to sell toxic weed to customers and wait to see if they get ill? Or will you smoke it yourself for years until something happens to you? This is not about ethics either, just a serious question..
I smoked many different toxic weeds bought from the streets because it's illegal where i live and i was unfamiliar with these chemicals. The weed always looked and smelled good, and only after smoking i realized it was contaminated.. I got many health issues from it, especially the lungs and the eye, but also gums and teeth.. I still remember one day i got some really pungent smelling weed that looked incredibly frosty, it looked like the best weed in the world, but it was grown with some chemicals and i almost went blind on one eye for a month.. I still have issues in this eye from it.. Really not worth it for few extra dollars