Can You Put Papaya and Guava Seeds in a Fruit Juicer Blender?
Pink guava and papaya are two of the easiest fruits to find in a Malaysian market. A 2025 study in the Indonesian Journal of Pharmaceutical Education (Vol 5, No 3, 2025) found about 273 mg of vitamin C in every 100 mL of fresh red guava juice. Packaged guava drinks in the same study had 0.50 mg. That is a good reason to make guava juice yourself, and the seeds are what stop most people.
Both fruits make a lovely drink, and both are full of seeds. So can you put papaya and guava seeds in a fruit juicer blender?
Yes, if the machine juices rather than blends. A blender grinds the seeds into your drink, so taking them out first is the usual advice. A slow juicer pushes them out with the pulp, the dry fibre left after juicing, so you can leave them in. This guide explains what happens to the seeds in each one, and how to prepare each fruit so the drink comes out smooth.
What a fruit juicer blender actually is
People use "fruit juicer blender" for two different machines. Some mean a 2-in-1 machine with a blender jug and a juicing part. Others mean any machine that makes fruit drinks at home. Either way, there are two ways to turn fruit into a drink:
- Blending. Fast blades cut everything in the jug into tiny bits. Skin, flesh, seeds and all end up in the glass.
- Juicing. The machine squeezes the fruit against a screen. Juice goes through the holes. Seeds, skin and most of the fibre stay behind as pulp.
What happens to seeds in a blender
In a blender, seeds have nowhere to go. The blades break them up and mix them into the drink.
Guava seeds are small and very hard. A home blender cannot grind them fine enough, so they turn into gritty bits that sit at the bottom of the glass and catch between your teeth. Most guava drink recipes made in a blender tell you to pour the drink through a sieve for this reason.
Papaya seeds are softer, but they have a strong, peppery taste. Blend a spoon of them into papaya juice and the whole drink turns sharp and a little bitter. That is why most people scoop papaya seeds out before blending.
So putting seeds in a blender is not recommended: take papaya seeds out, and sieve guava after blending.
What happens to seeds in a slow juicer
A slow juicer works the other way round. A turning screw, called an auger, presses the fruit against a fine screen. The juice passes through, and the seeds leave through the pulp spout with the skin and fibre.
Small seeds go out with the pulp instead of being ground up, so you can leave them in. That includes papaya and guava seeds. One slow juicer maker's FAQ puts it simply: with a good juicer you "don't have to peel your produce or remove small seeds", while with a blender "you would need to remove anything you don't want to eat such as seeds". Large, hard stones come out first, as you would before eating the fruit.
This makes a slow juicer the easier machine for both fruits. You do not need to dig out hundreds of guava seeds, scoop out papaya seeds or pour the juice through a sieve. Cut the fruit into pieces that fit the chute and feed it in.
Papaya needs a little more care, because its flesh is so soft.
How to prepare guava
Guava is firm, so it juices well.
- Wash the guava well and cut off the hard tip at each end.
- Keep the skin on. It is thin and juices well.
- Cut the fruit into pieces that fit the chute. Leave the seeds in if you use a slow juicer.
- Feed the pieces in slowly, one at a time.
Guava juice from a slow juicer is thick and pink, more like a nectar. If you like it lighter, stir in a little cold water or juice it with a firm, watery fruit such as apple or pear. Raw guava is worth the effort: it has about 228 mg of vitamin C and 5.4 g of fibre per 100 g, according to USDA FoodData Central (published April 2019). Most of that fibre stays in the pulp, so stir a spoon back in if you want it.
In a blender, blend the guava with a little water, then pour the drink through a fine sieve to catch the seeds.
How to prepare papaya
Ripe papaya is soft and has very little hard fibre. Soft fruit on its own can make a slow juicer work like a purée maker. The flesh comes out as a thick drink, and less of it leaves as dry pulp.
- Do not drop a whole papaya in. Peel off the skin first, since the same FAQ's rule of thumb, "if you can chew it, you can juice it", leaves papaya skin out.
- Cut the papaya in half. In a slow juicer you can leave the seeds in, because they leave with the pulp. If you are blending, scoop them out with a spoon, because ground seeds make the drink peppery.
- Cut the flesh into pieces.
- Juice it together with a firmer fruit, such as apple, carrot or pineapple. The firm fruit helps push the soft flesh through.
If you want a thick papaya drink, a blender works well here. Papaya has no hard seeds once you scoop them out, so there is nothing to sieve.
Which machine to use for each fruit
| Fruit | In a blender | In a slow juicer |
|---|---|---|
| Guava | Seeds turn gritty, sieve the drink | Seeds go out with the pulp, no sieve |
| Papaya | Scoop seeds out first, makes a thick drink | Seeds can stay in, mix with firmer fruit |
Some people own both. They use the slow juicer for guava, apple and carrot, and the blender for papaya and banana drinks. A 2-in-1 machine tries to do both jobs in one. Our page on whether a 2-in-1 fruit juicer blender is worth buying explains what you gain and what you give up.
Other seeds you might meet
The same rule works for most local fruit. Small seeds, like those in watermelon, passion fruit and dragon fruit, are fine in a slow juicer. Large, hard seeds and stones, like those in mango, rambutan and longan, must come out first. Our list of local fruits a slow juicer can handle shows how to cut each one.
After a batch of guava, rinse the screen straight away. Tiny seeds and pulp can stick in the holes once they dry. Our guide on how to deep clean a slow juicer screen shows how to clear them.
If gritty guava drinks are the reason you are shopping, you can compare fruit juicer blenders and slow juicers and choose one that keeps the seeds out of your glass.
Frequently asked questions
Can you blend guava seeds?
You can, but a home blender cannot grind them fine. They make the drink gritty, so pour it through a sieve after blending.
Do I need to remove guava seeds before juicing?
Not in a slow juicer. The seeds leave with the pulp, so you can cut the guava and feed it in with the seeds.
Can you juice papaya seeds?
Yes, in a slow juicer. The seeds are small and leave with the pulp. In a blender, scoop them out first, because ground papaya seeds make the drink peppery and a little bitter.
Why is my papaya juice so thick?
Ripe papaya is soft and has little hard fibre, so it comes out like a purée. Juice it with a firmer fruit such as apple or carrot, or add a little water.
Is a slow juicer or a blender better for guava juice?
A slow juicer, because it separates the hard seeds from the juice. In a blender you need to sieve the drink.
What seeds should never go into a juicer?
Large, hard seeds and stones, such as those in mango, rambutan and longan. Take them out first, as you would before eating the fruit.
