"first century Greek physician Pedanis Dioscorides says"
You might have missed the year. This bit was a advice from 2000 years ago, where horn was probably way more cheaper, than glas or metal. And I think if it is polished, it might be not too bad, but glas or silver are of course way better.
You might have missed the year. This bit was a advice from 2000 years ago, where horn was probably way more cheaper, than glas or metal. And I think if it is polished, it might be not too bad, but glas or silver are of course way better.