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Picture of Rose in a heart of ice
This instructable describes how to make a heart of ice containing a frozen rose.

Some days before Valentine's Day I noticed that it has already been some time since I last gave my wife I self-made, personal present. So I decided to use the opportunity and combined two symbols of Valentine's Day into a useless but romantic present: a heart carved out of ice which reveals a rose when melting.

My wife loved it.
 
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Step 1: Tools and materials

Picture of Tools and materials
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To make the heart of ice, we will proceed as follows: First, we suspend the rose in a bowl of water and freeze the water (steps 2-4). Then we remove the frozen water from the freezer and carve it into a heart (steps 5, 6). Finally, we prepare a wooden socket for the heart and mount the heart on this socket (steps 7-9).

For this, we will need the following tools and materials:
  • A rose. It should be big and in full blossom.
  • A working place that may get wet. There is a certain amount of melting involved.
  • A bowl in which we will freeze the water containing the rose. Since we want the rose to be completely contained in the ice, the bowl should be large enough such that we can suspend the rose such that there remains some space (at least 1cm) on all sides. The bowl I used (see the pictures) was borderline, a somewhat larger bowl would be better. (I do not give measurements, since the correct size of the bowl is relative to the size of your rose).
  • Some wire to suspend the rose in the bowl (step 2). My wire had a diameter of 0.5-1mm.
  • A freezer for freezing the water (step 3). You will probably find one in your refrigerator.
  • A sharp knife or paper cutter. Used for cutting away the stump of the rose protruding from the ice (step 4).
  • A flat screw driver. This one is never mentioned in any of the steps, but it is occasionally useful when the heart gets frozen to some other parts and you have to detach it.
  • Several rough rasps for carving the ice (step 6) and also for preparing the wooden socket (step 7). Probably any rasps will do, but see step 6 for some information which shapes turned out useful.
  • One or two sheets of paper and a pair of scissors. The paper will be used to mark the rough form of the heart on the ice (step 6).
  • A piece of wooden board for the socket. It should be at least the size of the bowl, and it should be unfinished wood. Of course, it should also be as beautiful and elegant looking as possible.
  • A jigsaw for cutting the wood to the correct size (step 7). Other types of wood saw (electrical and manual) will do as well. (But a chainsaw will probably be unsuitable.)
  • Some rough abrasive paper for polishing the edges of the wood (step 7).
  • Coffee for colouring the wood (step 8). This is only necessary, if you want the wood to get a little bit darker (since in my opinion, dark wood looks more accomplished). Instant coffee is best.
  • A brush for applying the coffee to the wood (step 8).
  • A nail for mounting the heart on the wood (step 9). The nail should be approximately 15mm longer than the wood is thick. But the exact length is not important.
  • A hammer, otherwise the nail will be of no avail.
  • A Valentine/wife/girl friend or the corresponding male form (for simplicity, I will assume that the recipient of the present is female throughout this instructable). See step 10.

The preparation of this present took about 3-5 hours of working time. However, since there is a lot of waiting involved (the water must freeze, and the coffee must dry), you should begin working at least two days before you want to hand over the present. Since the final result can be stored in the freezer for a long time (indefinitely?), better start too early than too late.

If you have all the tools, the costs for this project should be minimal. I only had to buy the rose, the remaining materials could be found at home.

Step 2: Suspending the rose

Picture of Suspending the rose
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In this step we suspend the rose in the bowl. Since the upside of the frozen water in the bowl will later be the underside of the heart, you have to hang up the rose head down.

For this, first cut off the stem of the rose (but leave a bit for attaching the wire. Then wrap the wire several times tightly around the bowl and try to somehow attach the rose head-down to the wire. I my case I got additional stability by piercing the end of the wire into the rose (see the last picture).

There are several things you should consider at this point:
  • The rose should touch the bottom of the bowl. Instead, there should be at least 1cm between the rose and the bowl, since you will later carve away some of the ice covering the rose.
  • If you leave several centimetres of stem, attaching the wire is easier. But you should check first how high you freezer actually is. Mine turned out to be too low, and I had to remove part of the stem after I already attached the wire.

Step 3: Freezing the water

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This step is very simple: Fill the bowl up to the rim with water and put it in the freezer. Do not worry if a small part of the rose sticks out, we will cut it off later.

Now wait until the water is completely frozen. How long this takes probably depends on your freezer and the size of the bowl. I waited approximately 24 hours. (If you are running low on time, while waiting you may start on the wood, see steps 7 and 8.)

And please, resist the temptation to prod and check the ice every half an hour. I did it, and once almost dislodged the rose.

When your water is completely frozen, it should look somewhat like on the second picture.

Step 4: Cutting away the stump of the rose

Picture of Cutting away the stump of the rose
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In this step, you will have to cut away the stump of the rose protruding from the surface of the ice. We need the surface to be approximately flat for later mounting the heart on the wooden board.

To cut away the stump, you will need some sharp knife. I used a paper cutter, but any sharp knife should probably work.

Since the rose is frozen, too, you will not be able to cut off the stump in one clean cut. Instead, you will have to scrape and cut off little bits of the rose until you have a flat surface like in the last picture. To not invest too much work in making the surface completely flat; when working with the ice later on part of it will melt anyway, so it will not stay exactly as it is now. All we need is a roughly flat surface.

In case you are not sure whether your knife is stainless, do not forget to wipe it dry afterwards.

Step 5: Removing the ice from the bowl

Picture of Removing the ice from the bowl
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Now we remove the ice from the bowl. To do so, we place the bowl head down on a table (or wherever you like) and wait for a few minutes. Every few minutes, prod the ice and try to gently dislodge it a bit within the bowl. After 5-10 minutes you should be able to remove a solid block of ice from the bowl.

On the second picture, you see the resulting block of ice. The heart painted on the ice was just a failed attempt of mine to mark where to carve later. The ink turned out to smudge much too quickly.

In case you want to have a little pause before the hard work begins in the next step, do not forget to put the ice in the freezer.

Step 6: Carving the ice

Picture of Carving the ice
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This step is where the actual work starts. You will take the block of ice and carve a heart out of it. It took me more than two hours; I was surprised how hard ice actually is.

The actual form of the heart is up to you, your creativity is required here. The only important thing is to remember that since you will mount the heart on a piece of wood, the bottom side of the heart should be flat. See the pictures for inspiration.

Nevertheless, I will try and give some hints on how I carved the heart, hoping that they might help you. Of course, the best technique also depends on your tools. I would be glad to hear your experience.

The first problem I faced was how to sketch the outline of the heart on the ice. I could not draw on the ice, since the ink smudged immediately. The solution was to cut out the outline of the heart from paper and to place it on the flat side of the ice. (See the picture.) Since the ice is already getting wet, the paper sticks to the ice. However, while working the paper is often dislodged, so you have to take care to to reposition it regularly. Notwithstanding these minor annoyances, having an outline of the heart greatly helped while carving. (If the paper starts to dissolve, just take it as a template for cutting another identical heart of paper.)

I then started carving from the flat side by first removing the ice near the flat side (where the paper was sticking). The effect is that I quickly (more or less) had the outline of the heart on the base of the block of ice and then could get rid of the paper (which already started to dissolve for the second time). As soon as the base of the block of ice has the right form, I could continue to work upwards and give the upper side of the heart a gentle round form.

Concerning the tools, I used rasps (indented for wood, I do not know whether there are they special ice rasps, but surely they are not easy find). I used flat and slightly rounded rasps for the rough word, and a rod-shaped one for the incision between the two bulges of the heart. 'To make carving easier, I filled a pot with hot (but not boiling) water and immersed the rasps in the water. By changing rasps in a round-robin style, I always had moderately warm rasps, which probably makes carving easier. But be careful not to have too hot rasps, I fear that the ice might crack if getting too warm.

While working on the ice, you should wear (working) gloves for three reasons.
  • First, the ice is very cold (as you probably guesses), and having gloves helps. Unfortunately, my gloves were not water-resistant, so they were quickly drenched in icy water. So if you have water-resistant gloves, use these!
  • Second, when you do not touch the ice with your warm hands directly, it probably melts less quickly. And since you are going to work on that ice for a while, there is a substantial amount of melting involved. (But at least in my case not so much as to endanger the project).
  • And third, although rasps are not the most dangerous tools, it is still can hurt if a slipping rasp takes away a bit of your skin.

A note on safety. Do not use electrical tools. There is a fair amount of water involved, so there is a hazard of electrical shock.

Step 7: Preparing the wooden base

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So far you have made a heart of ice. This by itself would already be suited for giving to your sweetheart, but to make it look more elegant and accomplished, we will mount it onto a nice little wooden board.

For this, first use a jigsaw (or a normal saw, if you do not have one) to saw out a square piece of wood on which we will mount the heart. The square should be somewhat larger than the heart of ice, with some space left at the margins not to make it look too crowded. Then saw off the corners of the square. (See the first picture.) This is a first approximation of rounded corners.

Now use a rough rasp to make the corners round. Then bevel the edges of the board. Now the does not look like a piece of leftover wood any more, but more like a custom made socket for the heart. (See the second picture.) Finally, use the rasp and abrasive paper too make the corners and edges smooth to the touch (you would not want your Valentine to get a splinter in her hand). The final result should look like on the third picture.

Step 8: Dyeing the wood

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I personally find that brown wood looks much more elegant than white wood. So if you used wood of a light colour (like I did), we will now dye it using coffee (of course, you may also use professional wood glaze).

My experiments have shown that for dyeing wood, instant coffee is the best choice. However, normal coffee works well, too.

Make a very strong cup of coffee (the more concentrated, the better). Then immerse the wood completely in the coffee, or, if this is not possible, use a brush to cover it with coffee. Wait a few hours to let the coffee permeate the wood. You may repeat this step a few times to make the brown colour more pronounced. The amount of success depends on the wood you used. Varnished wood will repel the coffee, completely unfinished wood will work best.

In the end, you should have a result like on the third picture.

Step 9: Mounting the heart on the wood

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We are now going to mount the heart on the wood. In principle, we could glue the heart onto the wood just by freezing it on. However, we want the rose not to fall off the board even when the ice has melted, therefore we will fix the rose using a nail.

For this, mark the position on the board where the bottom side of the rose will later touch the board using a pencil, and then drive a nail from below through the board and through this mark. I used a nail that protruded approximately 15mm from the board.

In order to give the heart a firmer hold on the board, we will use both the nail and frozen water to attach it. For this, slightly warm up the underside of the heart with your hands (no gloves this time) so that it gets wet. Then impale the heart on the nail (such that the nail pierces the bottom side of the rose), and force it down until the base of the heart touches the wooden board. It helps to turns the heart while pushing.

Now the present is ready. But the next step is nevertheless the most important one.

Step 10: Giving the present to your Valentine

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Well, for this step you probably do not need a lot of instructions. Just smile.

I attached a few photos of the heart melting and the rose appearing. To heighten the suspense, I did not tell my wife what was enclosed in the heart.

Step 11: Outlook

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There are a lot of possible modifications to this instructable.

The most obvious ones are not to make a heart but another form, and to enclose something other than a rose.

The technique of carving using the rasps the ice is probably not optimal. How do professional ice sculptors do it?

In my humble opinion, the most interesting variant would be to make the ice transparent, so that the rose is visible in its full beauty when handing over the present. However, I am not sure how to achieve this. I suppose that the ice is intransparent because the air gets out of the water, but cannot get out of the ice, because the upper layer of the water is already frozen (the uppermost 5-10mm of the ice where transparent). I see two possible approaches to solving this problem:
  • While freezing the water, we could stir the water constantly. Then the water will cool down more homogeneously, and the air will get out of the water before the upper layer starts to freeze.
  • We freeze layer by layer: We fill in 5-10mm of water at a time, and only when it is frozen, we add the next layer.
Both approaches are of course much more work than simply putting a bowl full of water in the freezer. I have not tried out either of the approaches, but I would be interested in any results in that direction. You might also have a look at the following instructable where clear ice is successfully produced.
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The only problem with this is that next year you have to top it
So many tools are needed.
Oh man, this is a great idea and a good opportunity to dust down my carpentry tools. By the way I found this on our website, Pinspire.de. Weäre a young startup from Berlin and don't want to step on anyone's toes. If you'd like a link to our website please contact me at nick@pinspire.de. Cheers!
mikesnyd3 years ago
You could make a quick silicone mold of a heart you have found or made already the size you need. Then instead of using a bowl just dangle your rose centered in your silicone mold. Fill with water and place in freezer. Can be done really quickly.
Gonazar7 years ago
Do you think it might be possible for it to bloom after you've frozen it, cause that would be wicked. The ice cold heart melting, then a blooming rose comes out. I wouldn't mind it being black as much if it could do that...
-Aj- Gonazar7 years ago
when water freezes it expands, so freezing a flower all the cells burst and it dies. which is why any vegies that youve accidentally put in the freezer look weird and a floppy when you take them out, this is also why frozen plants look darker when they thaw out. similar to if you had squashed them. this is because freezing it damages it in a similar way. so unless you have a cryo chamber for your rose, it wont be able to bloom when you thaw it. water freezes cloudy because the dissolved gases cannot stay dissolved when it freezes and they come out of solution, leaving millions of tiny air pockets in the ice. by boiling the water first all the gases are forced out so when you freeze it there is barely any in there.
djin -Aj-4 years ago
So let's say I do have a cryo chamber.. will it come out red?
Gonazar -Aj-7 years ago
what if you froze it in liquid nitrogen? i vaguely remember some experiments on organic objects that kept their color.
dani-e4 years ago
That's great! haha very creative.. i just need to find the time to do it xD
(:
I think your wife is prettier than the gift. = )
rlee88075 years ago
Remember that "Instant Ice" stuff that actually is like a plastic. As far as I know, that doesn't melt, so if it came out clear, you could actually mount it.
Toxicity5 years ago
I love the fact that the rose turns black, a good little gothic touch for my GF.
That is so awesome! The rose turns black. I would love to recieve it, even if it wasn't in the shape of a heart.
ilovegm5 years ago
I'm terribly adversed to hardwork.
Do you think using a soldering iron to melt the ice is a good idea?
Not exactly familiar with the inner workings of the iron, wouldn't want to electrocute myself...
Dominique Unruh (author)  ilovegm5 years ago
I understand your wish to avoid the hardwork, but I do not think the soldering iron is a good idea.

First, as you pointed out, there is a safety risk of letting electric devices get wet. If you absolutely have to try (which I do not recommend), pay great attention that no part of the iron except the tip gets wet. Perhaps wear insulating gloves additionally, and have someone around who can pull the power plug and call an ambulance if it comes to the worst. But even then, there remains a risk I would not recommend to take.

Second, I even doubt that the soldering iron will help. As far as I understand, a soldering iron continuously heats up the tip, but only with relatively low strength. For soldering this is OK, because you only use the tip for a few seconds at a time, and then there is a break within which the iron can get the lost heat back. But if you try to melt ice, most soldering irons (especially those used for electronics) will not have enough power to keep up the heat - the tip will get cold almost immediately.

Summarizing: I believe that it will not work anyway, and that trying is dangerous. So I recommend to find a different solution. Sorry.
Good point, guess I shouldn't cheapen the effort put into a gift for my partner anyways.

Thanks for the reply, much appreciated.
This looks great!! I plan to do one using a silk rose. The ice seemed to have burned the rose somewhat. A silk rose will look the same, regardless being frozen.
filthyfury7 years ago
you can make transparent ice by freezing warm or hot water instead of cold, i dont why it freezes clear but thats how you do it
Right there with you. Boil it first. Loses the surprise, but it's much cooler to see how the rose is actually suspended in it.
boiling the water gets the gases dissolved in it, therefore it doesn't form bubbles when you freeze it.
Stikk8 years ago
Did anyone think the rose looked kinda weird when it came out of the ice? I mean this is an awesome idea, but it looked a little morbid to me, the black rose, but i suppose it would be kind of cool if you like that sorta thing. I'd prefer it if the rose stayed red, maybe using a fake one would work better? Just a suggestion, great idea though! :)
Dominique Unruh (author)  Stikk8 years ago
Yes, it came out quite black. The problem is that this is quite natural for roses. For example, if you dry roses, they also get black. Perhaps if you do not take a red rose, but a rose-coloured rose, you might get a lighter result. However, I am not sure if the resulting colour will be beautiful. Concerning the fake rose, I suppose it will not loose colour, but I do not like giving fake roses - it's not the real thing...
FWIW: With a peach coloured rose, I got a very cool looking flame coloured rose, yellow-orange-red colours.
Cool. Do you have a photo somewhere?
No photo, sorry. But try drying some different colours, they seem to come out similar colours when dried as when frozen. But it was really tie-die flame-looking, from an innocent peachy pastel colured rose.
inquisitive7 years ago
Now a ring or earrings in the middle of the heart would be a really unexpected surprise, maybe enclosed in a capsule like the bubble gum toys come in? or a note or poem in it? I don't mind it cloudy-it adds to the mystery.
Actually a very great idea.
Love it.
The rose looks all black at the end, looks really cool.
Probably too hard for me, I just might buy those Skittle heart things, fill that up with water, then freeze (and the rose part), then it would come out cool.

Nice job!
Brennn107 years ago
Creative! I like it!
I think I may have my own take on this to do in another, like an absolute pscho instructable A series of timesavers called that would be cool... Sorry random tangent, If would personally boil the Ice etc make it clear, wait boil the ice, the water even then carve it and polish on side to clarity then sand the other to make it opaque, making a either a mirror effect of simply making the rose more interesting... also I think the effect of freezing make the rose more interesting, red roses are a bit cliched, black on the other hand...
sunkist32087 years ago
To make the ice crystal clear, you could boil the water, let it cool, boil it again, let it cool again and THEN put it in the bowl to freeze. It's always worked for me.
nim67 years ago
what if you used that clear ice instructable along with this?... just a thought..
This is a really unique idea, but have you considered using a silk rose instead of as live one? The silk one will still maiintain it's color, and the ice won't blacken it... Neat idea, though!
alex26i8 years ago
They do make heart shaped ballons you know, I think all that wire inside the ice is kinda yuck, you can also use a silk rose from the dollar store. Then fill it with water.. Tie a knot.. Freeze and done, Later you can drill a hole and stuff a LED into it.
Could you use dry ice? Dry ice does not melt into water it evaporates, this would mean the rose would not turn black.....ewww
Dominique Unruh (author)  lukeair458 years ago
In theory, that would probably work. But the problem is how to freeze the carbon dioxide to enclose the rose (although one can by dry ice, i.e., frozen carbon dioxide, we have to freeze it ourselves to get the rose inside). Carbon dioxide freezes at -78 degrees Celsius. A normal freezer does not reach that temperature. One might try and use liquid nitrogen for cooling and a supply of pressurized carbon dioxide to encase the rose in dry ice, but that would probably be a very difficult process. Still, if one could manage it, it would also get us rid of wet furniture after the heart melts.
Actually, it would theoretically be possible. Industrially, dry ice isn't produced by freezing it solid- it's cooled until it's a liquid, then the pressure is reduced off of the liquid. This causes some CO2 to evaporate, absorbing heat and letting the rest freeze into a solid. If lukeair could build a heart-shaped rose container, fill it exclusively with CO2, cool it with liquid nitrogen or whatever, then reduce the pressure, the rose could conceivably be encased in dry ice. Also, lukeair could conceivably start a business.
tydeus8 years ago
I think the rose turned black for the same reason most people can't freeze strawberries. The water around and in the cells of the rose freezes and make large pokey ice crystals. those crystals puncture the cells and well...imagine something half your size and shaped like a nail going through you...You can limit the size of the crystals by freezing the water very fast. Do this by first putting the roses (or in Alton Brown's case in Strawberry Sky, strawberries) in your freezer so that they get really cold but do NOT let them freeze. When they're nice and chilled, get them into a cooler of chopped up dry ice. The dry ice will freeze them very fast, even faster when the ice directly contacts the rose (that's why it needs to be chopped up). after that your roses are frozen and you can put them in the freezer for...ever i guess. Warning: dry ice is cold...like...really friggin cold.
Man, I love Alton B. Cool instructable!
Thats really sweet, but why would you give her a BLACK rose?
try using warmer water lranging from lukewarm to hot to prevent bubbles and a more transparent overall outlook.
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