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You can make a watermelon ripen faster by using a few simple tricks that speed up the natural ripening process.
If you’ve ever cut into a watermelon only to find it pale, crunchy, and barely sweet, you know the disappointment.
The good news is that you can make a watermelon ripen faster once it’s off the vine, and you don’t need any special equipment to do it.
In this post, we’ll look at how to make a watermelon ripen faster, why some watermelons struggle to ripen in the first place, and the mistakes that slow the process down.
Let’s get into it.
How to Make a Watermelon Ripen Faster
Making a watermelon ripen faster comes down to controlling a few key things: ethylene gas, temperature, and airflow.
Get those right, and your underripe watermelon can sweeten up in just a few days.
1. Use the Paper Bag Method
The paper bag method is the most reliable way to make a watermelon ripen faster.
Simply place your watermelon inside a brown paper bag and loosely fold the top closed.
The bag traps the ethylene gas the melon naturally releases, which is the hormone responsible for ripening.
Just don’t seal it airtight because a little airflow keeps mold from forming.
2. Add a Ripe Banana or Apple
If you want to make a watermelon ripen faster in record time, toss a ripe banana or apple into the bag with it.
These fruits release a lot of ethylene gas on their own, which speeds up the ripening process for the watermelon sitting next to them.
Check the bag daily so the melon doesn’t go from perfectly ripe to overripe.
3. Keep It at Room Temperature
Warmth is your friend when you’re trying to make a watermelon ripen faster.
Aim for a spot that stays between 65 and 75°F, since cooler temperatures slow ripening down dramatically.
Whatever you do, keep the watermelon out of the fridge while it’s still underripe, because cold air halts the process almost completely.
4. Flip It Every Day
Turning the watermelon over once a day helps it ripen evenly on all sides.
This also keeps one spot from sitting too long against the surface, which can lead to soft or mushy patches.
It’s a small step, but it makes a real difference when you want to make a watermelon ripen faster.
5. Give It Indirect Sunlight
A little warmth from indirect sunlight encourages ripening without cooking the fruit.
Just avoid direct, harsh sun for hours on end, since that can heat the melon unevenly and ruin the texture.
A shaded porch or a sunny windowsill works great here.
Why Some Watermelons Don’t Ripen Well
Not every watermelon responds the same way when you try to make a watermelon ripen faster.
1. They Were Picked Too Early
Watermelons picked way before their time often lack the internal sugars needed to ripen properly.
They may soften a bit, but they’ll never get truly sweet.
2. They Aren’t Climacteric Fruits
Here’s the tough truth: watermelons are non-climacteric, meaning they don’t ripen much after being separated from the vine.
So while you can make a watermelon ripen faster in terms of texture, the sweetness won’t increase the way it does with bananas or avocados.
3. They Were Stored in the Cold
If your watermelon sat in a cold truck or fridge for days, the ripening process already stalled.
That’s why buying from a local farm stand and ripening at home gives you better results.
Common Mistakes That Slow Ripening Down
If you’re trying to make a watermelon ripen faster, avoid these slip-ups.
1. Storing It in the Fridge
Cold temperatures are the enemy of ripening, so leave the melon on the counter until it’s ready.
2. Stacking Heavy Items on Top
Pressure bruises the rind and damages the flesh underneath, which speeds up spoilage instead of ripening.
3. Skipping the Daily Check
Once the watermelon starts softening and smelling sweet, move it to the fridge to stop the process.
If you forget to check, you might end up with an overripe, mushy melon.
4. Expecting Too Much From a Bad Melon
If the field spot is white instead of creamy yellow, that melon was picked too soon, and no trick will make a watermelon ripen faster into something it isn’t.
So, How to Make a Watermelon Ripen Faster?
You can make a watermelon ripen faster by using a paper bag, adding a ripe banana or apple, keeping it at room temperature, and flipping it daily.
Just remember that watermelons aren’t climacteric fruits, so the sweetness won’t change much once they leave the vine.
The best approach is to buy a melon that’s already close to ripe, then use these tricks to nudge it along.
Hope this post has helped you understand how to make a watermelon ripen faster and the mistakes to avoid along the way.