How to Prevent Carved & Uncarved Pumpkins from Rotting
Pumpkin carving and decorating is a favorite pastime during this time of year. After you've carved an amazing design or face into a pumpkin or two, you want to show it off through your window or set it out on your porch for the neighbors to see. Without knowing the tricks to save your holiday pumpkins, they can turn slimy, moldy, and mushy in as little as three days.
Don't let that happen—let everyone see your original masterpiece, not a mushy, sunken, sad version. Learn these tricks now and have the best looking jack-o'-lanterns in your 'hood for Halloween and beyond!
This is an easy and effective way to keep your carved pumpkins from molding for up to seven days. The sodium hypochlorite kills microorganisms that make pumpkins rot. The steps for making the solution are super simple:
- After your pumpkin has been carved, rinse it out with water to get rid of excess strings and gunk.
- Take a large bucket or tub and fill it with three gallons of water.
- Stir three teaspoons of bleach into the water.
- Dunk in the pumpkin. Be sure to hold it down as it will try to float. The entire pumpkin should sit in the solution for two minutes. You might want to wear gloves, too.
- Remove from the solution and let the pumpkin air dry.
Not only is WD-40 great for your squeaky doors, turns out it's also great for pumpkin preservation. How and why does it work? The company famously keeps its ingredient list a secret. However, WIRED Magazine sent a bottle of the stuff to a lab and broke down the ingredients within.
It turns out the main ingredient in WD-40 is mineral oil—the same stuff in Vaseline (see below). So that's what's keeping your pumpkins hydrated, protected from moisture, and fresh looking. It also contains several alkanes that are water-repellant and freeze-resistant. So go forth and use it to preserve both carved and uncarved pumpkins. The directions are simple:
- Spray all over your uncarved pumpkin to keep it looking shiny and new.
- For carved pumpkins, spray inside and outside making sure every part is saturated.
Keep in mind that mineral oil is flammable, so you may want to be cautious about putting a lit candle inside, but some folks say they've never had to deal with a jack-o'-lantern en fuego.
This is probably the easiest solution available. Pumpkin Fresh is specifically designed to prevent mold on your pumpkin, carved or whole. You can order it online or find it at your local pumpkin patch.
My Science Project describes the ingredients as containing "...water, sodium tetraborate decahydrate (borax), and sodium benzoate (a preservative and fungicide). The label describes it as a 'fungicidal solution.'"
This solution is designed to keep carved pumpkins at their freshest, unlike some solutions, which preserve whole pumpkins (see below). Just spray it all over the interior and the cutouts and enjoy a long-lasting jack-o'-lantern.
All you have to do is spread the petroleum jelly inside your pumpkin and around all of the cut out areas. Reapply as necessary.
Extreme Pumpkins makes a good point, though: spreading petroleum jelly on a pumpkin is kind of a pain. We suggest you put on a disposable latex glove so you don't have to goop up your hand and you can really slather the stuff on with minimal mess. That goes for the method below, too.
If petroleum jelly sounds unappealing to you, you can also use a vegetable oil, like olive, to do the same thing.
Most of the oils you have in your kitchen, like almond, avocado, and sesame, are occlusive agents—meaning that they hold in moisture, just like petroleum jelly. Simply apply oil all throughout the inside of your pumpkin and all of the cutouts. Reapply as necessary. As with petroleum jelly, we recommend using a disposable latex glove for application to minimize mess.
Yes, floor cleaner is an excellent preservative, but for uncarved pumpkins only. This is a great trick for those of you who just like the look of whole pumpkin decor in your homes for Halloween and Thanksgiving. Floor cleaner will keep your pumpkins shiny and fresh for up to four weeks.
Fortunately, many brands of floor wax will still work to preserve pumpkins, as long as it's an acrylic liquid type of cleaner, at least according to the University of Nebraska at Lincoln. Just apply liquid floor cleaner to a moist towel and gently wipe all around each pumpkin, leaving a thin coat. It goes without saying that you can't eat the pumpkin once it's been treated in this fashion.
If you can't quite handle the thought of applying floor wax to a pumpkin, By Stephanie Lynn has another solution: clean the pumpkin or gourd with a mild bleach solution (ten parts water to one part bleach) to kill any bacteria on the surface, then apply a little bit of petroleum jelly and buff the gourds to a high shine. You can also use plain ol' vinegar and water to rinse the surface, too, since it's food-safe and kills the majority of viruses and bacteria.
Now that you have the best pumpkin preserving tricks on hand, you better get to carving! More fun Halloween food hacks await!