What kind of Juice cleans pennies the best?
90400
the juice extracted from the fruit of Capsicum frutescens  Linne (Fam.Solanaceae) works best.
175222
Hot sauce ...picante sauce or coca cola
278491
I reccomend red cabbage juice. It works very well, but it's a bit smelly.
426240
Do the one where you have a bunch of pennies and you test which liquid cleans faster. i used that for my science project and got a 100 on both oral presentation and organization.\nif that doesn't help, i've found an amazing site with a bunch of projects:\nhttp://members.ozemail.com.au/~macinnis/scifun/projects.htm\nThis takes a while to load but it's definitely worth it!\n\n\nAlso, here are some others: \nhttp://www.cdli.ca/sciencefairs/intermed.html\nhttp://othello.mech.northwestern.edu/~peshkin/scifair/chias_ideas.html#level2\n\nHope they help!
196270
I prefer Kohls...but Penneys good too.
138772
I bought some inexpensive silver cleaner at the grocery store, although if you are in a pickle try toothpaste and a soft toothbrush.
366447
medicinal gasoline. It will really clean out your system. Try the Night Quill extra strength super unleaded.
478305
Milk of Magnesia and Prune Juice.  You may need to repeat a couple of times.
1039430
I usually go answer Tech questions, but this was too much to resist :)\n\nThis to me, depends on the quality of the money, if I see a shiny penny, I would pick it up, though I wouldnt get close to it if it was covered with gum, mud, etc, all depends on condition. \n\nAs for anything larger than a penny, I honestly dont care about the condition unless it was really disgusting, cigarette ash, gum, poop, none of that stuff and i'll take it :)\n\nFor bills, my eye that looks for cleaniness goes blind and I dont care what condition it is in, its money! In fact, I once picked up a McDonalds coupon good for a Big Mac half off with purchase of a Big Mac. Since it says "No actual cash value", I guess I picked up things that are worthless as well :)
563611
penny-royal tea.\n\nyou can get penny-royal at a herbalist.
971501
2 Tablespoons (1 fluid ounce) fresh-squeezed lemon or lime juice (approx. ½ lemon),\n\n2 Tablespoons (1 fluid ounce) organic Grade B maple syrup, not maple-flavored sugar syrup or syrup from companies that use formaldehyde to harvest their syrup,\n\n1/10 Teaspoon or more cayenne pepper (hot red pepper), and\n\n1 Cup (8 fluid ounces) purified or spring water, NOT fluoridated water.\n\nhttp://www.therawfoodsite.com/mastercleanse.htm
751234
An acid dip will do it. The problem being that the acid will eat the zinc too.  SO, use a dilute acid, such as muriatic. Which is dilute hydrochloric acid.  Nitric, and phosphoric acid would also work. Make sure you don't use a concentrated acid, as it is not needed, and can be quite dangerous.  There is a good chance that a commercial AC coil cleaning solution (inhibited dilute phosphoric I believe) would do the job.  Once the copper is removed, make sure to use tongs to remove the penny, and then rinse it well to stop the action of the acid.
796994
Brush\n\n\nThat is about it.  The old wives tales about lemon juice and salt will just damage your teeth, and the one about peroxide is not completely true either, as I have soaked an extracted tooth in that to remove the blood and tissue and it took soaking it for about 24 hours for the tooth to get white. So unless you plan on holding peroxide in your mouth for 24 hours, which I don't recommend, that isn't going to work well to whiten.\n\nCrest whitestrips are not that expensive and they do work.  Don't try those old wives tales.
385723
Pennies from 1980/81 and before are already pure copper, so no work would be necessary, other than cleaning them.  New pennies are copper-plated zinc.  A simple way to extract the copper is to make a gash in the side of the penny, then drop the penny in some hydrocholoric acid.  The HCL will react with the zinc to form zinc chloride (expelling hydrogen gas), but will not react with the copper.  This will leave you with a thin copper shell (FYI, this is a common high school/general chemistry experiment).  It is actually a fairly cool experiment.
222384
I did a science fair project that combined science and economics - it was called "Which Dish Washing Liquid is Best for Your Buck".  I tested which dish washing liquid was the best by seeing how many drops of it were needed to destroy the surface tension of a glass of water.  I then figured out how much each drop of dish washing liquid cost, and reported on the best value.  The judges seemed to like the economics side of it as well as the science fair side of it.  Good Luck!
1140997
Lime?\nPfeifer ?\nWish you the best
1049813
Water is the healthiest by far but juice that 100% natural is good, and so is milk