Build a DIY Honey Warming Cabinet

Pinterest Hidden Image

Any beekeeper who sells honey will experience crystallized honey at some point. One answer to this problem is to build a honey warming cabinet to reliquefy the jars of honey. When this happens and you need to decrystallize multiple jars it is especially troublesome. And, it is not just beekeepers, any one who practices bulk food storage may face the problem.

how to decrystallize honey with a warming cabinet safely image.

Using a Warming Cabinet to Decrystallize Honey

It is rather aggravating to have a jar of honey that turns to solid sugar in your pantry. But, what if you have a dozen quarts of crystallized honey – or even a bucket!

Having solid honey in a large bucket is a challenge that beekeepers often face. But, when this happens in jars (or worse – plastic honey bears) that is even a bigger misery.

Of course, it is really simple to decrystallize a jar of honey with a hot water bath – but what if you have 20 of them! That takes some time.

What is a Honey Warming Cabinet?

Warming cabinets are designed to slowly warm honey to a certain temperature. We want to raise the temperature enough to melt crystals that have formed inside the jars. But, we do not want to “over heat” the honey and damage its nutritional value.

Any type of large (heat safe) container may be used to construct a warming cabinet. The size of the container needed will depend on how many jars of honey you wish to liquefy at one time.

The internet is filled with plans and designs. But, I wanted something that would be simple and easy to construct. Can you create a similar device using what you already have on hand?

Reversing a Normal Process

The honey crystallization process is quite amazing. How fast honey crystallizes depends on the temperature at which honey is stored and the nectar source.

The goal is to gently warm it to an appropriate temperature and hold it there for a period of time. Not an extreme heat flash but rather a gentle warming. In this way, we could melt the crystals forming in the honey without damaging it.


The basic material need to build my honey warming box were:

  • a box
  • a heat source
  • a thermostat

You don’t have to follow my exact constructions but can use items to have on hand to achieve the same results.


When building your honey warming box/cabinet, you want a box big enough to hold about 10 or 12 jars of honey at a time. 

Join Our Beekeeping Community

Free "Secrets to Successful Beekeeping" plus weekly newsletter with info about bees, beekeeping and more...

I didn’t want to have to build a big wooden structure (instead I used something I had on hand)! I wanted my warming cabinet to be light-weight and easy to put away when not needed.

Outer Box

For my base, to give the box sturdiness, I chose to use an extra shallow bee box. A shallow is about 5  3/4″ tall. This space would allow the installation of some type of heat source with a minimal fire risk (hopefully none).

The frame rest inside the super box gave me a place to rest a sturdy wooden shelf made from scrap lumber. So glad I used pine – it smells sooo good. 


I constructed a simple platform made of wooden strips to hold the jars up off the heat source. It was fairly easy to nail and glue the strips together.

You could use something else if you wish. Perhaps, a section of plastic coated metal wire shelving cut to size? The options are endless as long as it is heat safe (just in case).

Heat Source

Wanting to use what I had on hand, I chose to mount a metal switch box to the inside of the wooden shallow super. This would give me a firm surface to hold my heat source in place.

Thereby, lessening the chances of causing a fire hazard. Even though I never leave my cabinet unsupervised.

Creating a warming cabinet for honey with a wafer thermostat image.

I also needed a light fixture and I already had a porcelain one on-hand. It mounts to the metal wall box and will enclose the wiring. It will also serve a a place to mount my lights.

I used an adapter that allowed me to use 2 bulbs at one time. This is not necessary but I had one and chose to try it. Yes, I use incandescent light bulb in this honey warming cabinet-because they generate heat.

If you choose to not use them, or they become unavailable, there are other heat options. And some of those already include thermostats.

Now, I needed a way to control my heat source. I do not want the honey inside to become over heated. Going through some things in the barn, I found a wafer thermostat (used for chicks)!

While not fancy, it will do the job and is easy to adjust. There is no programming involved, you just turn the screw to adjust. As the temperature rises, the wafer expands and cuts off the electric current to the lights.

I wanted my thermostat to be on the opposite side of the heat source and just a bit higher up so I would have to mount it on the foam insulation used to create a box big enough for my jars.

inside of honey warming cabinet to decrystallize honey image.

Constructing the Outside Layer of the Honey Warming Cabinet

For the basic construction to make the box tall, seal the bottom and construct a top – I used scrap pieces of RMAX insulation board (available at Home Depot or Lowes). 

I like it because it provides some heat retention and is easily cut with a box cutter or knife. You can make the box any size. 

However, the larger the inside dimensions, the longer it will take to warm your honey. I chose to make the box to a size that was just a few inches taller than a quart jar of honey sitting on my wooden rack base.

Armed with RMAX Board and duct tape, I went to work wrapping the shallow super and other components inside a foam box.

descrystallize honey with a warming cabinet made of rmax image.

Not an Electrician?

Let’s discuss the electrical requirements for just a moment. I am not an electrician and I can not offer intelligent advice on connecting wiring. However, anyone with a modest amount of electrical knowledge could complete this project.

If you are unsure about electrical safety, ask for help for a knowledgeable source or google “how to wire a wafer thermostat” for diagrams.

In its most basic design, you will have a wire and plug (like a lamp cord) that deliveries electricity to your lamp fixture (bulbs).

The thermostat wiring is installed between the plug and the fixture. In this way it can “interrupt” the electric supply when temperatures reach a certain point.

Always keep safety and fire danger in mind when working with heat or electricity. If you don’t know what you are doing – get help.

What Temperature Should Your Honey Cabinet Be?

I used a remote temperature sensor to gauge the temperature inside the box without removing the lid. This allowed me to adjust my wafer thermostat to around 110°F. 

The last thing I want to do when decrystallizing honey in my warming cabinet is to damage the honey. In fact, I set rarely set jars directly over the bulbs-even glass jars – but rather around the edges unless the box is full.

Expert Tips

  • don’t overheat your honey – keep temps below 115°F
  • never leave the box unattended when in use-watch for fire danger
  • you can decrystallize your honey bears inside – placed on the opposite side from the lights

Other Options

Ok, by now you should understand the basic principle. We are keeping the honey in very warm – but not hot conditions – for only as long as it takes to melt the crystals. Perhaps you don’t have the option or room to build a cabinet like this.

That’s okay, you can use bucket warmers to warm 5 gallon buckets of honey. However, building a honey warmer cabinet of some type makes warming jars easy.

Couldn’t use just use the oven? Maybe but honestly even at the lowest setting, an oven gets too hot. A dehydrator might be a feasible option if your unit has a heat setting in the acceptable range.

Final Thoughts

This is certainly not the only way to build a cabinet to warm honey. But it is what I constructed from materials on hand. You can adapt it to fit your needs and your materials. I have found my warming box for honey to be an easy way to decrystallize multiple jars of honey.