Quick answer
Silver melts ice quickly because it is a very good conductor of heat. Heat from the metal, a hand, and the room flows through the silver into the colder ice, and the silver does not create any heat.
- Copper conducts heat nearly as well, so fast melting does not prove an item is silver.
- Silver conducts heat well for the same reason it conducts electricity, its many free electrons.
- Do not use lead for this experiment, because lead is toxic and should be kept from children.
A common question about silver is why it seems to melt ice so quickly.
Why does silver melt ice?
Silver melts ice quickly because it is a very good conductor of heat. Heat from the metal itself, from your hand and from the room flows through the silver into the colder ice. The silver does not create any heat. Pure silver has the highest thermal conductivity of the common metals, about 428 W/m K, but copper is close behind at about 401 W/m K. That means fast melting does not prove an item is silver.
Below is a detailed explanation and some related questions.
Why Does Silver Melt Ice? (Detailed Explanation)
Silver melts ice because it has a high thermal conductivity.
Silver is a good conductor of heat for the same reason it is a good conductor of electricity. It has many free electrons that carry energy through the metal, as OpenStax College Physics explains.
In other words, heat moves easily through silver from the warmer side to the colder side.
It can also do something similar with electricity, which is why silver is often used in electrical applications.
Silver has very low electrical resistance, but it is not zero.
Silver melts at 961.78°C, but its melting point plays no part in the ice test. What matters is how well the metal conducts heat, how much of it touches the ice, and how much warmer it is than the ice.
Here is how that affects the ice.
When room-temperature silver touches ice, heat flows from the warmer silver into the colder ice. The silver then takes in more heat from your hand and the air and passes it on. As the ice warms up, it melts.
Eventually, the ice melts into a liquid state of water.
Does Silver Melt Ice Fast?
Silver starts to melt ice almost immediately.
How long a whole ice cube takes to melt depends on the size of the cube, the size of the silver and the temperature of the room. There is no single reliable figure.
The speed at which silver will melt ice depends on:
- The size of the ice
- The size of the silver
- The temperature of the room
Smaller ice cubes melt faster than bigger ice cubes. This is because there is less ice for the silver to heat up.
The same goes for the size of the silver.
A larger, flatter piece of silver usually melts ice faster than a small one.
This is because a larger piece touches more of the ice. The more contact area there is, the faster heat can flow into the ice.
Finally, the temperature of the room will also affect how fast silver melts ice.
If the room is hotter, the silver will melt the ice faster because it can absorb more heat from the environment.
This video shows a silver ice test race:
Does Fake Silver Melt Ice?
Fake silver can melt ice quickly too, so the ice test is not reliable.
Some imitations are poor conductors. German silver, an alloy of copper, nickel and zinc with no silver in it, conducts heat at about 24.9 W/m K, compared with about 428 W/m K for pure silver, according to Engineering ToolBox. But other imitations conduct heat very well. Copper is at about 401 W/m K and aluminum at about 236 W/m K.
A slow result can be a sign that an item is not solid silver. A fast result proves nothing, because copper and aluminum also melt ice quickly. Every metal that is warmer than the ice will melt it to some degree.
The ice test cannot confirm that silver is real or pure. Sterling silver contains 92.5% silver, with the rest copper or another metal, and U.S. jewelry rules allow the word sterling only for items that are at least 925/1,000ths pure silver. Look for a fineness mark such as 925 or Sterling. For anything valuable, ask a jeweler or an assay office to test it. As UK hallmarking guidance puts it, it is very difficult to know what a piece of jewelry is made of just by looking at it or touching it.
Does Silver Melt Ice Faster than Copper?
On paper, silver should melt ice slightly faster than copper, but the difference is small.
Silver and copper are the two best heat conductors among common metals, at about 428 W/m K for silver and about 401 W/m K for copper.
That is because both metals have many free electrons that carry heat. Their melting points have nothing to do with it.
Silver is simply slightly better than copper at heat conduction.
In a home test, the size and shape of each piece and how warm it is can matter more than this small gap.
When Does Silver Not Melt Ice?
Silver will not melt ice if the temperature in the room or space is equal to or lower than the temperature of the frozen ice.
For example, in your freezer.
If you place a piece of silver on an ice cube in your freezer, the silver will not melt the ice.
This is because the silver and the ice are at the same temperature, so no heat flows from one to the other. A home freezer should be at 0°F (-18°C), according to the FDA.
The same goes for if you place silver in a block of ice.
Once the silver has cooled to the same temperature as the ice, there is no temperature difference left to move heat into the ice.
Warmer silver melts ice faster because the temperature difference is bigger. Room-temperature silver is warm enough for this experiment. Do not heat silver in a fire or on a stove to try it, because hot metal can cause burns.
Other Than Silver, What Other Metals Melt Ice?
Silver is not the only metal with thermal conductivity properties.
In fact, many other metals can also melt ice.
Approximate thermal conductivity of common metals, in W/m K, from Engineering ToolBox: silver 428, copper 401, gold 318, aluminum 236, zinc 122, brass 111 to 120, carbon steel 43 to 54, lead 35.5, titanium 22.4 and stainless steel (type 304) 14.4. The higher the number, the faster the metal can move heat into ice.
Does Gold Melt Ice?
Gold does melt ice.
Gold is the third-best heat conductor among common metals, at about 318 W/m K, behind silver and copper. As with silver, the size and shape of the piece matter.
Flat gold pieces that touch more of the ice’s surface will melt it faster.
Does Steel Melt Ice?
Steel does melt ice.
Carbon steel is a much weaker heat conductor than silver, at roughly 43 to 54 W/m K depending on how much carbon it contains.
Steel still conducts heat far better than ice or air, so a room-temperature piece of steel will melt ice. It is just slower than silver, copper or aluminum.
Does Stainless Steel Melt Ice?
Stainless steel does melt ice.
Stainless steel contains chromium, an element that makes the steel less susceptible to corrosion. But it also makes it a poorer conductor of heat than regular carbon steel.
Type 304 stainless steel conducts heat at about 14.4 W/m K, compared with about 43 to 54 W/m K for carbon steel.
This means that it will take longer for the stainless steel to melt the ice.
But, it will eventually melt the ice.
Does Lead Melt Ice?
Lead does melt ice.
Lead is a fairly poor heat conductor for a metal, at about 35.5 W/m K, so it melts ice slowly. Its low melting point has nothing to do with it.
Do not use lead for this experiment. Lead is toxic, and the CDC says there are no safe levels of lead in the blood. Keep lead away from children, food and drinks.
You’re better off using safer and faster metals to melt ice.
Does Aluminum Melt Ice?
Aluminum does melt ice.
Aluminum is a good conductor of heat, at about 236 W/m K. That is lower than silver or copper but far higher than steel, so aluminum melts ice quickly.
Does Brass Melt Ice?
Brass contains a blend of zinc and copper, both of which can conduct and transfer heat.
Therefore, brass can melt ice.
Brass is a moderate conductor, at about 111 to 120 W/m K. That is roughly a quarter of silver’s value, but at least twice that of carbon steel.
Does Zinc Melt Ice?
Zinc is a moderate conductor of heat, at about 122 W/m K, similar to brass.
Although it does a decent job at conducting heat, it’s not as good as some other metals.
Zinc will melt ice, but it will take longer than silver, copper or aluminum.
Can Titanium Melt Ice?
Titanium can melt ice, but it is a poor heat conductor for a metal, at about 22.4 W/m K. That is about 5% of silver’s value.
If you try to use titanium to melt ice, prepare yourself for a long wait. It will take a long time.
As a very strong metal, titanium is often used in situations where strength is more important than heat conductivity.
Final Thoughts: Why Does Silver Melt Ice?
If you want to try a fun experiment at home, place an ice cube on a silver coin, piece of copper, or some aluminum foil.
It should start melting almost immediately.
This experiment shows how well metals conduct heat. It does not show whether a coin is real silver.
Read these next:
Sources
Engineering ToolBox (thermal conductivity of metals)
OpenStax College Physics 2e (conduction)
Royal Society of Chemistry (silver)
Code of Federal Regulations, 16 CFR 23.5 (FTC Jewelry Guides, silver)
GOV.UK (hallmarking guidance summary)
CDC (childhood lead poisoning prevention)
FDA (storing food safely)
NCBI (High Temperatures High Pressures journal article)
Physical Review (thermal conductivity of metals)
Reviewed October 2026. We corrected the claim that the ice test shows whether silver is real, since copper and aluminum also melt ice quickly, replaced the melting point explanation with thermal conductivity figures, removed an invented two-hour figure and the suggestion to heat silver in a fire, and added a lead warning, using Engineering ToolBox, OpenStax, the Royal Society of Chemistry, U.S. jewelry rules and the CDC.