Japanese Subway Grows Its Own Hydroponic LettuceOne subway in Japan is performing such personal gardening, growing their own hydroponic lettuce right inside the store. It's not enough to meet customer demands, topping just 5% (if that) of all the sandwiches served at that location. But to be fair, Subway puts a truckload of lettuce on every sandwich. As in, lettuce is actually the first entry on the ingredient list for the B.M.T.* [Subway via M
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