"Hayabusa" > wrote in message
...
> Oranges and lemons are usually sprayed with some chemicals to preserve
> them. This stuff should not be eaten. But some recipes ask for lemon
> or orange zest. I have trouble to find unsprayed oranges in the shop.
> But someone told me that it suffices to simply wash the fruits with
> warm water and a drop of detergent. Would anyone know if this is true,
> or if there is more one should know about?
>
> Fkoe

There not much more you can do than scrub them well. Some chemicals are
systemics, meaning they're absorbed into the fruit. Not sure how prevalent
they are in citrus. Anyway, scrub with a fingernail brush, and that's it.