Making Jello straight from the box is simple enough, but maybe you tossed the box, can’t read the tiny print, or have a large box instead of a small one. It’s okay! Below, I’ll give the exact water amounts for small, large, and Zero Sugar Jello boxes, how to make it set faster, and how to fix Jello that won’t set.
The instructions on the back of a small, 3-ounce box of gelatin will tell you to empty all of the powder into 1 cup boiling water, and whisk for 2 minutes ’til completely dissolved. Then stir in 1 cup cold water, and refrigerate ’til firm (usually 4 hours). If you’re using a large box, a sugar-free box, or you just need it to set faster, the chart below has every exact water measurement and ratio you need.
Whether you’re making regular Jello, Zero Sugar Jello, speed-setting a dessert, or making Jello Jigglers, here’s a handy cheat sheet for perfect liquid-to-powder ratios. Print it out and put it on the fridge for quick future reference!
Jello is something I’ve enjoyed since I was a kid. If we caught the flu or some other bug that took away our appetites, mom made up a bowl and set it in the fridge for when we started to get a little hungry. There are so many different flavors to choose from, and there are so many fruity desserts you can make with a gelatin mix.
How Much Does a Box Make?
Knowing your yield helps you pick the right dish or mold before you start pouring:
- Small Box (3oz/0.3oz Zero Sugar) – Makes 2 cups of liquid gelatin, which equals 4 (½-cup) servings. Use a small box to fill a 2-cup mold.
- Large Box (6oz/0.6oz Zero Sugar) – Makes 4 cups of liquid gelatin, which equals 8 (1/2-cup) servings. Use a large box to fill a 4-cup mold.
- Jigglers (2 Large Boxes) – Makes 24 one-inch squares when poured into a 9×13 pan.
Ingredients Notes & Substitutions
Remember, these ratios work for both regular Jello and Zero Sugar Jello. If you’re using a large 6-ounce box, simply double the water amounts as shown!
- Jello Gelatin Mix – One 3-ounce small box (or 0.3oz Zero Sugar box) in whatever flavor you like! You can also use a large 6-ounce box (0.6oz Zero Sugar).
- Boiling Water – 1 cup for a small box (or 2 cups for a large box). I love my electric tea kettle for boiling water on the fly, but a small saucepan on the stovetop works great too!
- Cold Water – 1 cup for a small box (or 2 cups for a large box). Make sure it’s cold water and not just room temperature. If using tap water, drop in a few ice cubes to chill it before measuring.
How to Make Jello from the Box
Here’s a video showing the step-by-step process. If you’d rather read and follow along, you’ll find steps and photos below.
Here is your step-by-step guide for a small box…
- Pour the Jello powder into a heatproof bowl.
- Add 1 cup boiling water (2 cups for a large box). Stir together until the powder is completely dissolved and no granules are left on the spoon or in the bottom.
- Stir in 1 cup cold water (2 cups for a large box).
- Refrigerate for about 4 hours, or ’til firm.
Once your Jello has firmed up, it’s ready to eat. Scoop it into a dish and make it a dessert with a big dollop of whipped cream on top!
More Ways to Use Gelatin
There are so many different ways that you can use Jello. Here are a few yummy favorites…
How Long Does Jello Take to Set?
As I said earlier, it takes about 4 hours in the fridge for the regular method. Keep in mind that deep bowls will take longer than wide, shallow dishes. Metal pans will also chill faster than either glass or ceramic.
Just remember that texture matters more than the clock. My rule of thumb is that it should be firm to a light touch, and it shouldn’t stick to your finger. It should also spring back quickly after being gently pressed into.
How to Make Jello Set Faster
To speed things up, you can also set it in the freezer for about 20 minutes before transferring back to the fridge for the remainder of its resting time, but I don’t personally recommend it because your gelatin will be ruined if it even starts to freeze. A much safer method is the “speed-set method,” which cuts the set-up time from 4 hours to no more than 1 1/2 hours. For a small, 3-ounce box, you’ll need to:
- Dissolve into 3/4 cup boiling water.
- Next, add 1/2 cup cold water to a 2-cup glass measuring cup. Fill with ice cubes ’til the water level reaches 1 1/4 cups.
- Stir the cold water into the Jello/hot water mixture ’til slightly thickened.
- Remove any unmelted ice cubes, and then refrigerate the Jello mixture for 30 to 90 minutes, or until firm.
One other thing that’ll make your Jello set even faster is to place your mixing bowl into a larger ice water bath while stirring. Just be careful that the rim of your bowl doesn’t go beneath the water. Once it begins to thicken, stick it in the fridge to finish setting up.
Why Won’t My Jello Set?
There are several reasons that it might not be setting up properly…
- If the powder was not fully dissolved into the boiling water, the Jello will not set up properly.
- Too much water will also prevent Jello from setting up. If using the speed-set method, leaving unmelted ice cubes in the bowl adds extra water and thins out the gelatin ratio.
- It may just need more time. Jello needs at least 4 hours in the fridge to set up properly.
- Be sure not to add incompatible fruit to your Jello. Under the “To Add Fruit” section on the back of the box, it states, “do not use fresh or frozen pineapple, kiwi, ginger root, papaya, figs or guava.” These fruits contain protease enzymes, which break down the gelatin, preventing it from setting up like it should.
How to Add Fruit to Jello
You can also add fruit on top once it’s fully chilled. You can use canned fruit; just be sure to drain out the syrup so it doesn’t water it down.
Mom always made Jello with strawberries. To suspend fruit inside your Jello, you’ll want to stir in about 3/4 to 1 1/2 cups chopped fruit when the gelatin is only partially set (about 1 1/2 hours in the fridge). That way, the fruit won’t float or sink to the bottom; then let it chill another few hours, ’til fully set.
To make Jello with fruit on the bottom, simply arrange fruits in your dish, and pour the Jello liquid over top. Then chill as instructed in the recipe above.
How to Make Jello Molds & Layered Jello
Remember, the small box (3-ounce) will fit a 2-cup mold, and the large box (6-ounce) will fit a 4-cup mold. To keep the your gelatin from sticking, you’ll want to lightly coat the mold with nonstick cooking spray; then wipe it out with a paper towel so that only a thin film is left.
- For the small box, dissolve the Jello mix into 1 cup of boiling water, stirring about 2 minutes.
- Then stir in only 1/2 cup cold water.
- Pour into your mold, and set it in the fridge for about 4 hours, or ’til the Jello is firmed up.
- Once it’s set, dip your mold into warm (not hot) water for 10-15 seconds, taking care not to let water flow over the sides and into the mold.
- Now, loosen the edge with a wet finger, and gently invert your Jello onto a wet plate. The water will help you slide it into the center of the plate once it’s out of the mold.
You can also layer different flavors of Jello in your mold. To do so, let each layer set until firm but still tacky before adding the next layer. Also, you’ll want to make sure that the liquid for your next layer is cooled at least to room temperature so it doesn’t melt the layer beneath it.
Expert Tips and Recipe FAQ’s
Yes, you can use most fruit juices instead of water, but I recommend avoiding fresh pineapple juice, or any other juice that contains enzymes that break down the gelatin. Jello’s own box states, “do not use fresh or frozen pineapple, kiwi, ginger root, papaya, figs or guava.“
Yes! In fact, Jello needs at least 4 hours in the fridge to fully set, and it stays good for much longer than that.
You can cover it with plastic wrap, but just know that it may take it longer to set up if it’s covered, especially if it’s still warm.
Unfortunately, Jello does not say that it’s gluten-free anywhere on the box. You can buy other knock-off brands of gluten-free flavored gelatin, but the reviews are mixed.
Cover with plastic wrap or transfer into an airtight container and into the refrigerator. Stored this way, it’ll stay good for 7-10 days. Just don’t freeze it, because freezing it will ruin the texture.
If you try this recipe, why not leave a star rating in the recipe card right below and/or a review in the comment section further down the page? I always appreciate your feedback. You can also follow me on Pinterest, Facebook, YouTube, and Instagram. And subscribe to my email list too!
How to Make Jello
Equipment
- Electric Tea Kettle or Sauce Pan
Ingredients
- 1 – 3 ounce box Instant Jello mix
- 1 cup boiling water
- 1 cup cold water
Instructions
- Pour the powdered gelatin into a medium mixing bowl.
- Add boiling water to the gelatin mix, and stir for 2 minutes until it’s completely dissolved.
- Stir in the cold water.
- Refrigerate the gelatin mixture for at least 4 hours, or until the gelatin is firm and doesn't stick to your fingers. It should also spring back quickly after being gently pressed into.
- Once your Jello has firmed up, it's ready to eat. If you're making it for dessert, you can scoop some into a dish and top it off with whipped cream or Dream Whip.
Video
Notes
- Dissolve into 3/4 cup boiling water.
- Next, add 1/2 cup cold water to a 2-cup glass measuring cup. Fill with ice cubes ’til the water level reaches 1 1/4 cups.
- Stir the cold water into the Jello/hot water mixture ’til slightly thickened.
- Remove any unmelted ice cubes, and then refrigerate the Jello mixture for 30 to 90 minutes, or until firm.
- For the small box, dissolve the Jello mix into 1 cup of boiling water, stirring about 2 minutes.
- Then stir in only 1/2 cup cold water.
- Pour into your mold, and set it in the fridge for about 4 hours, or ’til set.
- Dip your mold into warm (not hot) water for 10-15 seconds, taking care not to let water flow over the sides.
- Now, loosen the edge with a wet finger, and gently invert your Jello onto a wet plate.
Nutrition
Hello, I’m an American living in Rosarito Beach, Baja Ca, Mexico and all of the instructions on the box of “Jello” it’s a different brand, are in Spanish. SO, I was thankful to find your website because I’ve never made jello before. And it’s even easier than I thought it would be. Thanks again, Greg
For a jello mold , how much should I reduce the cold water? I have an old Tupperware retro mold and want to make a 2 layered mold like Mom used to make. Thanks!
Sandy, I haven’t made a Jello mold in a long time now, but I don’t believe that you need to reduce any of the water to make one. You just have to let set long enough that it doesn’t fall apart when you take it out of the mold. I hope this helps!
I didn’t realize how old I have become. You are certainly right about the tiny print on the box. It’s even worse when it is not black and white. I couldn’t believe I would have to ask my grandchildren how to make Jello!! So I didn’t…..I got on the computer. Thank goodness I found YOU. Thank you so much—-we oldies have to stick together, hu? I’ll stay in touch now.
That’s great!! I’m so glad this recipe was able to help you. I know people make fun of this recipe all of the time, because, heck, it’s right there on the box. But so many people have found it so helpful that I am really glad I posted it.
Thanks got the info. Please settle a dispute…in the quick set method, what is the total amount of liquid: approximately 2 cups or 1 1/4 cups? Thank you
Hey Claire, I checked my package for Jello, and for the speed-set method, it recommends using 1 & 1/4 cups total water. I hope this helps!
Total cups of water used to make Jello
Small box
Regular: 1 boiling + 1 cold water = 2 cups
Speed: 3/4 boiling + 1 1/4 Ice water*= 2 cups
*1 1/4 cups Ice water = 3/4 cups ice + 1/2 cup cold water
Large box
Regular: 2 boiling + 2 cold water = 4 cups
Speed: 1 1/2 boiling + 2 1/2 Ice water**= 4 cups
**2 1/2 cups Ice water = 1 1/2 cups ice + 1 cup cold water