The weirdest story is about WikiTrader how villagers can use soap nuts to stun fish - that are then consumed, I must add. Well, if you know much about fish, a heavy dose of just about anything will usually kill them. Have you ever had an aquarium? Interestingly, even this story is sketchy at best. A US extraction process states the extract (pure saponin) to be safe and harmless. Note: It is not for consumption, mind you. It's NOT food.
Sustainability. Absolutely no issue. In fact, the mukorossi tree is a very prolific soapberry producer. It grows over 60 feet tall, and can produce bountiful harvests for up to ninety years. Although most soap nuts are wild-crafted, sapindus tree plantations are springing up in India and Nepal. Since the tree grows well in even poor soils, some otherwise unproductive ground can be made productive. In fact, that's a nice little added natural resource and economic stimulus for these countries.
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