May 252013

homemade colloidal silver generatorHaving already written about the benefits of colloidal silver, I will now outline how to make colloidal silver by making a colloidal silver generator at home. There are numerous places online to purchase colloidal silver generators, but that is not necessary as the procedure is sufficiently simple to be suitable for a junior high lab experiment.

There are two key elements in the process, which most expensive generators are designed to accomplish. One is to maintain a constant current because as the electrolysis procedure introduces increasing concentrations of silver ions and sub-microscopic silver particles to the water it becomes more conductive.

If you do not control the current it will thereby increase and the process will “run away.” This will result in particles much larger than the ideal 40 to 50 nanometers. You will know if the procedure goes too far because the colloidal silver will take on a yellow hue.

To avoid the complexity of wiring a resistor into a circuit with AA batteries and save money I use a battery charger from a defunct cordless phone. It has 120V input and a constant 500 milliampere (1/2 Amp) current at 9 volts. This is ideal for a home setup.

If you don’t have one they are easy to come by at a garage sale or if need be Radio Shack, or The Source if you live north of the border. You will also need some alligator clips so if you need to go to the store you can also grab those.

The second key element in the process is to provide agitation to the water during the electrolysis. Some of the expense in the advertized, rather overpriced generators, is attempted to be justified by claims of the generator’s design to accomplish this automatically.

Having read of suggestions to stir the water by hand during the process makes it clear why some people would prefer just to buy a machine. When I make a batch of colloidal silver it takes roughly 8 hours. That is a lot of stirring!

The simple, inexpensive solution is to purchase an air pump for aquariums at Walmart for about 10 bucks. This type of water aeration is ideal for producing quality silver colloids! Just make sure you keep the little pump on a level above the vessel you do the electrolysis in so as not to get a “shocking” surprise.

Here is a list of the equipment that I use:

9 volt, 500mA battery charger (or somewhere in a range near these values)

1 quart wide mouthed mason jar (or similar glass vessel)

Laser pointer (I purchased mine as a pet toy from the Dollar Store)

Small piece of wood to fit across top of vessel

4 small alligator clips

A couple of nails to hold 2 alligator clips to wood

Electrical wire strippers (or a utility knife)

Obviously, a hammer or something to embed the nails in the wood

Small aquarium pump

2 pieces of 99.99% pure silver

Distilled water (Important: The purer the water the better and safer the colloidal silver)

Switched surge protector (not absolutely necessary, but very handy and commonly owned)

A word about the silver. I went to a Canadian bank that sells silver coins from the Canadian mint, which is well known internationally as a reliable source of pure silver. The shipping per coin was more than half the price of the coin! It was explained to me that armored vehicles were a part of the cost.

I purchased mine from Canada Post and the delivery was included in the price. For anyone outside of Canada you may be subject to taxes and duties by your own government. Coin shops are another option if reputable. There are companies online that sell silver wire for making colloidal silver but, having never dealt with them, I cannot properly vouch for any of them.


Drive 2 small nails into the side of the wood about 2 inches apart and in the middle to hold 2 alligator clips. Cut the 9 volt plug off the end of the wire coming from the 120 volt charger and strip 1/2 inch of plastic sheathing off the ends of the wire. I used wire strippers, but if you don’t have any a utility knife will suffice if you are careful.

Crimp an alligator clip onto the end of each of the bared wires. It is not necessary but, if you have the equipment, the clips will be better secured if you also solder them to the wire. Grab the edge of the coins (or silver wire) with the wired alligator clips and dangle them from the 2 clips nailed to the wood. Now, this is where the clips on the wood come in handy, especially if you are using coins.

jar of water with two pieces of silver hanging from alligator clips on wiresYou do not want the alligator clips to come in contact with the water. Else-wise you will get some nasty impurities electrolyzed along with the silver. Colloidal silver may be taken internally, on occasion, as a super antibiotic, so you want it to be as pure as possible.

So, using the alligator clips on the wood dangle the coins into the distilled water making sure the clips are not in contact with the water. Plug the pump and battery charger into the surge protector. Elevate the pump above the water level and put the plastic air tube into the vessel.

Now, you can throw the switch and start the process. Having read a number of procedures that said it takes a couple of hours, when I made my first batch I checked it every hour. After making a few batches and seeing it actually, with my setup, takes roughly 8 hours I now begin testing at 7 hours.

A laser beam visible in a jar of colloidal silverThe test is a simple one using the Tyndall effect, which is the scattering of light by particles in a colloid or even a fine suspension. This is where the laser pointer comes in handy. Turn off the equipment and take the wood and coins out of the jar.

Take the jar into a semi-dark room and shine the laser through the jar and liquid. If you can see the stream of light through the liquid you have colloids. With colloidal silver too much is not good. When I reach a point where I can see the laser beam in a semi-dark room I generally run it for about another hour.

My personal test is passed when I can see the beam in a light, but not brightly lit room against a dark background. Viola, you now have your own homemade super external and internal antibiotic! I stockpile mine just in case. We live in troubled times and I feel it is a prudent thing to have on hand!

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 Posted by at 11:59 am

  17 Responses to “Making A Colloidal Silver Generator: How To Make Colloidal Silver”

  1. What is a normal dosage to be taken internally?
    Thanks for this information.

    • Internally, as an antibiotic, I generally take 3 tsp per day. Sorry for taking so long to respond but I was away. A friend’s cow had mastitis and I calculated that level by weight for her and she was cured within a few days.

  2. Some very useful tips and definitely some I will be using from now on. If I could make a suggestion, you can buy 9999 silver from the bank or bullion dealer in the form of Canadian Silver Maple leaf 1oz coins for around $24. I would also suggest you use a TDS meter to find out your PPM levels, can buy one for $20 online.

    • Actually, the Canadian bank I was going to purchase the Maple Leaf coins from wanted more for shipping than the coins cost. When I asked why I was informed that armored cars are expensive. I bought mine through the post office and the shipping was included. As for the ppm it is not a number that I am at all interested in as the much more important factor is the size of the nano particles.

      The ppm can be high with large nano particles, which are much less effective as an internal antibiotic, a common problem with commercial manufacturing. American Biotec Labs actually got a patent for their process of producing a very effective colloidal silver. If you look through the literature one of the principal reasons is the ability to make it with very small colloids. Here is a useful link

      • I started to read that lengthy patent process, yikes. One thing that got my attention was the use of aluminum in the process, not sure I like that sound of that. Anyways I have a question:

        I’ve been studying up on colloidal silver generators. Some of the more expensive systems make a big distinction between constant current and and constant voltage. Some of these setups apparently us a variable resistor of some kind decreasing or maintaining a specific current during the process.

        I kept hearing that 1 milliamp is optimal. Do you know anything about this.

        Also it dawned on me that my simple dollar store ear bud headphones probably use very little power. On the packaging it says it has Impedance: 32 ohm/Hz … Rated Power: 40 mW … Sensitivity: 103 dB/mW … I can’t figure out how that translates to milliamps I think it’s only a few.

        Do these numbers mean anything to you? Do you think really low milliamps (i.e., 1 milliamp) as suggested by other manufactures makes sense? If so, what do you think of my ideal for a Laptop computer headphone output powered colloidal silver generator by stripping of the actual headphone part and replacing it with alligator clips similar to your cellphone charger hack?

        • I am a little dubious about 1 mA being optimal. My system generates 500 mA constant current and takes 7 to 10 hours to produce sufficient colloids to detect them with an infrared light. In my research I found a number of procedures where it was stated that 2-3 hours was sufficient. Hence, I suspect that 1 mA of current might take months, if at all.

          I know that the stuff I produce is effective because I gave a bunch to a friend a couple of times whose cow was diagnosed with mastitis and it cured her both times within a few days. Although it took quite a bit as cows are pretty heavy:), it saved him the expense and hassle of the usual, painful for the cow, administration of antibiotics.

          If you are set on building a generator, I would suggest setting it up and trying it for yourself with your idea. If it doesn’t work finding a charger with 9 volts and 500 mA should be a simple matter and I know that works. I hope that helps.

  3. I’m using thousand fine ingots purchased a a coin store several years ago and I keep getting a pale yellow liquid and barely show any Tindall effect. Using a 12 volt step down transformer and distilled water in a glass jar.
    Any help you could offer would be appreciated


    • As you are no doubt aware Lee, the colloidal silver solution should be crystal clear. The only coloration/discoloration I have seen is a blackening due to over exposure to oxygen and light causing oxidation like on tarnished silverware. Either the purchased coins are not pure or, perhaps, you have let some other metal like the clips holding the coins come in contact with the water. If so they too will be oxidized into your solution.

      The poor Tindall effect could be a function of the quality of your silver or the length of time you are passing current. I have seen numerous blogs that recommend a couple of hours. I have been making my own for years and it always takes 10 to 12 hours. I make colloidal copper for purifying water and it only takes a couple of hours to get a good Tindall effect, but silver takes at least 10 hours with my set up.

      • Recently changed my setup to a larger jar, that’s when the trouble started I think. I’ll go back to my old way and see what happens.
        Thanks for you response, I appreciate it very much.
        Great site. You’ve got me thinking in a lot of directions

  4. A land line phone line coming into a house puts out 40 to 50 volts would that be to many volts to make the silver with ? phone lines stay live during a power outage.

    • No Don that would not be too much voltage, but you want to be able to regulate the current so it doesn’t increase as the colloids lower the resistance of the water. I plug my charger into a 120 v line and it regulates the current. You can do the same thing with a few resistors on your phone current. I get my land line in a bundle with my internet from a cable company so when the power is down my phone is too. Hence, I am going to have a backup system that runs on battery that I can charge with a solar panel, which will also require resistors to maintain a steady current.

  5. Can colloidal silver be used safely in a nebulizer used for respiratory infection, etc.?

    • People do and report positive results without any side effects. There are even sites where people are selling nebulizers for that very purpose, but as with any method of ingesting colloidal silver the risk of side effects increases with the amount of colloidal silver ingested. Apparently this can be a problem with nebulizing it.

      Experiments with lab rats indicate that excessive regular nebulizing for 90 days irritates the soft tissue of the lungs and silver particles appear to become embedded in the tissue. So I would exercise caution especially if it is for a chronic condition.

  6. This is a very Interesting Subject, I am Very interested in building one, My problem will be finding the 99.99% pure silver in USA west coast. Im not sure where i would get the coins? Jim like you indicated above only the silver is in the water, so either the Silver coins or Bars have to be big enough to be partially out of the water to avoid water contact with the clip, and yet silver being large enough to make contact with the water, aeration of the water will evaporate at a certain rate? That would be the reason for a larger coin/Bar, to avoid no contact with the water do to evaporation in the 8-10 hour cycle, it may have to be monitored. I would like to have some more info on the copper water purification set up, I wonder how pure the water is when finished, is it Distilled Pure? Great Info!!

  7. Ok I see 12 Ga. 4″ or 5″ long 99.99% Pure silver wire is used on some production units.

    • That is what I would have used if I could find it in Canada, because like you say with the coins it can be a tad difficult to keep the clips above the aerated waterline.

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