Often it is difficult to change existing bars with "new stuff". However I am asking myself, why are new bars not growing mint themselves? Hydroponic systems are quite efficient and easy to maintain. First: why should a bar grow their own mint? The answer is quite obvious, bars are using a lot of mint. And mint is quite delicate - that means, transporting it, will take its toll. But there are points, which are going even further: self-grown mint, would need less to be processed (washed, stored etc). Second: there is even more to it. Mint has most of its aromatics in microscopic hair underneath the leaves. While it is transported, it looses a lot of these hairs, and the aroma is gone forever. Even a sophisticated system, how to revive mint and keep it for along time, will not change, that this mint will taste only like a shadow of fresh harvested mint! Third: mint growth I admit, if you first of all plant mint, it seems a bit of a delicate thing....