I rarely eat tomatoes, and then only the very small tomatoes, since they generally are higher Brix. As for lemons and limes, who eats those?
I don't like tomatoes, but I make fresh lemonade by squeezing fresh organic lemons into water. I use it instead of the HCL tablets that others have recommended to improve digestion. I figure it's more natural and closer to raw Paleo and I also like the taste. Instead of replacing my low HCL with processed HCL tablets, and thus possibly inhibiting my body even further from producing HCL, I instead use lemon juice and sometimes unheated coarse natural sea salt (salt is used by the body in producing HCL). Lemon juice is not purist, completely unprocessed, raw Paleo, but it's less artificial than HCL tablets, it was prescribed by my naturopath, and I like it, so I went with it, even though I'm skeptical of naturopaths' recommendations (but even more skeptical of allopaths' recommendations, based on personal experience and reading about others' experiences and scientific research on the abysmal quality of modern medicine).
So, in general, people tend to gravitate toward the higher-Brix types of fruits for eating fresh and raw. I think that's natural and sensible.The key is to not accept the lower-Brix ones, and buy only the higher-Brix ones.
OK, so you determine which foods to buy based on Brix and presumably you also determine which sources to use based on testing several foods from each source, yes?
Once you determine which foods to buy and which sources to use, wouldn't the highest Brix fruits/veggies also tend to taste the best, so one could simply use one's taste preference (and overall Instincto alliesthetic senses) to determine what to buy? Wouldn't this Instincto method also be a decent stand-in technique for those of us who don't plan to buy a Brix device?
If you buy a fruit/veg and then it tests lower than 12 Brix, do you throw it out or compost it or what?