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You know when to pick soursop by watching for a slight color change from deep green to a lighter, yellowish-green, and by checking that the fruit gives just a little under gentle pressure.
When you pick soursop at the right time, it continues to ripen beautifully off the tree, turning soft and sweet over a day or two.
Picking soursop too early means you’ll be stuck with a hard, bitter, and astringent fruit that never develops its famous creamy flavor.
Picking soursop too late, though, and it can become mushy, fermented, and unpleasant to eat.
In this post, we’ll get into exactly how you know when to pick soursop, the visual and tactile signs to look for, and how to handle the fruit after you harvest so you enjoy it at its peak.
Let’s dig in, because there’s nothing like a perfectly ripe soursop.
Key Signs for When to Pick Soursop
So, how do you know when to pick soursop?
There are a few clear markers that tell you the fruit is mature enough to come off the tree and finish ripening indoors.
1. The Color Shifts From Deep Green to Yellowish-Green
The most reliable sign for when to pick soursop is the color change on the skin.
A young, unripe soursop is a rich, uniform dark green from top to bottom.
As the fruit matures, that deep green starts to fade, especially in the valleys between the soft spines.
You’ll notice a lighter, more yellowish or pale green tone creeping up the fruit, and that’s your cue.
When you pick soursop at this stage, you’re catching it at the ideal moment for harvest.
Don’t wait for the whole fruit to turn yellow, because by then, it’s likely overripe and may have already split or started fermenting on the branch.
So watch for that subtle lightening, and you’re on the right track.
2. The Spines Spread Apart and Soften
Another way to know when to pick soursop is by examining the soft, fleshy spines that cover the outside.
On an immature fruit, these spines are tightly packed and feel fairly firm and sharp.
As the soursop matures, those spines begin to spread apart slightly, and the spaces between them become more noticeable.
The spines themselves also get softer and less prickly to the touch.
When you gently press one of those spines and it gives a bit rather than feeling rigid, that’s a solid indication that you can pick soursop now.
This spreading and softening is a natural process that happens as the fruit fills out with juicy flesh inside.
3. Gentle Pressure Reveals a Slight Give
You also want to test the overall firmness of the fruit to know when to pick soursop.
Hold the soursop in the palm of your hand and press lightly with your thumb, similar to how you’d test an avocado or a peach.
If the skin feels rock hard with zero give, then it’s not ready yet.
If it feels like soft playdough or has a noticeable squishy spot, it’s way too ripe and likely already past its prime.
The sweet spot is when the fruit yields just slightly to pressure, like pressing on the palm of your hand, but still holds its general shape.
When you pick soursop at this stage, you’ll bring it inside and it will become perfectly soft and creamy within 24 to 48 hours.
That gentle give tells you the internal sugars are developing and the flesh is starting to soften.
4. The Stem Shows Signs of Detachment
Take a good look at the stem where the soursop attaches to the branch.
When the fruit is ready to pick, the stem often starts to dry out and turn brownish.
It might also look slightly cracked or separated at the base where it meets the branch.
This is a natural signal that the tree is done feeding the fruit, and it’s an excellent sign for when to pick soursop.
If you twist the fruit gently and it comes off with minimal resistance, that’s a good indication it was mature enough.
If it’s clinging tightly to the branch, though, leave it for a few more days because the soursop is still drawing nutrients.
How to Ripen Soursop After You Pick It
So you’ve figured out when to pick soursop, and now it’s off the tree.
But here’s the good news: soursop is a climacteric fruit, which means it continues to ripen after you harvest it.
That’s why you don’t need to wait for it to be fully soft on the tree.
Here’s how to handle it so you get that perfect texture and flavor every time.
When you pick soursop at the right maturity, just set it on your kitchen counter at room temperature.
Within a day or two, the skin will darken slightly to a more yellow-green, and the fruit will soften considerably.
To speed things up, you can place the soursop in a brown paper bag folded shut at the top.
The bag traps the ethylene gas that the fruit releases naturally, and that gas accelerates the ripening process.
Adding a ripe banana or apple to the bag, which also release ethylene, can help you ripen soursop even faster.
Don’t put unripe soursop in the fridge, because cold temperatures will halt ripening and ruin the texture.
Only refrigerate soursop once it’s already soft and you want to slow down further ripening for a few days.
What Happens If You Pick Soursop Too Early or Too Late
Understanding when to pick soursop means you’ll avoid the two common mistakes that ruin the fruit.
If you pick soursop too early, say while it’s still dark green and rock hard, it might never ripen properly.
The flesh will stay firm and chalky, and the flavor will be intensely sour and astringent, with none of that sweet, pineapple-like creaminess you’re after.
Your fruit will be pretty much inedible, so patience really is key.
On the flip side, if you leave soursop on the tree past the ideal window, it can become overly soft and may split open on its own.
Once that happens, the fruit is exposed to insects and bacteria, and fermentation sets in quickly, giving it an off, boozy smell and taste.
So knowing when to pick soursop is all about catching that narrow maturity window where the fruit is mature enough to ripen well but still firm enough to handle without bruising.
So, How Do You Know When to Pick Soursop?
You know when to pick soursop by checking for a lighter yellow-green color, softened and slightly spread spines, a gentle give under pressure, and a stem that’s starting to dry out.
When you pick soursop at this stage, you’ll bring it indoors, let it ripen on the counter, and enjoy a fruit that’s sweet, creamy, and absolutely delicious.
You don’t need to be a fruit expert to get it right once you know what to look for.
Remember, it’s always better to err slightly on the early side of maturity rather than waiting too long and losing the fruit to over-ripeness.
So next time you’re standing in front of your soursop tree, look for those color changes, give the fruit a gentle squeeze, and check the stem.
That’s exactly how you’ll know when to pick soursop for the best possible harvest.
Happy harvesting.