Lime juice me... a tip when you ran out of acid for jewelry pickling

I ran out of "pickle", acid that I need to clean sterling silver due to oxidation during soldering process.
Thanks to Jusuf Baba, I borrow his idea on using lime juice.
So, opened up my fridge, cut a slice of lime and squeeze the juices. I added some hot water and put them in the crock pot.



See before and after picture.

One hour later... voila...
It does take a little longer time compare to store bought acid. Besides, I have some lime enough to make my favorite drinks. Margarita anyone....?