goldpelican said:Jislizard said:I have 23 Kg of dirty 50% pre decimals, mostly shillings so every night I get 5 of them out and give them a good clean to get all the dirt off, then a quick going over with bi-carb to bring them up to a shine. To be honest I am getting sick of them!
Dude, just go to Woolworths and buy a dozen bottles of cloudy ammonia for like $15, and soak the lot in a bucket for a few hours. Rinse, dry and play.
Funny you should say that! I have several litres of the stuff at home and I am currently doing a few coins a day.
The problem is that the dirt is not tarnish so mere chemical action won't do it. Without mechanical action the coins remain dirty but leech out copper. In order to clean them I have to give them a 10 minute soak to attack the grease and then a quick going over with a toothbrush. This is the rate limiting factor.
If I chuck them all in the bucket then I take them out and start to clean them one by one by the time I have finished some will have been in the bucket of Cloudy ammonia for a couple of weeks.
Then you have to thoroughly dry them which also takes time.
I have asked my wife if I can use the dishwasher or the washing machine but for some reason she is being difficult. She doesn't even like the smell of cloudy ammonia in the house and makes me go outside to play.
I would love to batch process them but the only way I can think of doing it is to send them to a third world country and get small children to use the chemicals.
In fact the easiest way to do it cheaply is to sell the coins at spot or just below and then buy back cleaner coins at spot. Saves on time and cleaning products and I can give the wife her toothbrush back as well.