Level 4. Level 5. Level 6. If you work in a care home kitchen, these numbers matter. They tell you exactly how food needs to be prepared for residents with swallowing difficulties.
But what do they actually mean? And how do you get it right every time?
This guide breaks down the IDDSI framework in plain language — what each level requires, how to test it, and why it matters for your residents.
What Is IDDSI?
IDDSI stands for International Dysphagia Diet Standardisation Initiative. It’s a global framework that standardises how we describe and prepare food and drink for people with dysphagia (swallowing difficulties).
Before IDDSI, different countries and care homes used different terms for the same textures. Now there’s one standard everyone follows.
The framework has 8 levels (0-7), covering both food and liquids. For care home kitchens, you’ll mostly work with levels 3-7 for food and levels 0-4 for liquids.
The 8 IDDSI Levels Explained
Here’s what each level means for your kitchen:
Level 0: Thin
Liquids that flow as easily as water. Examples: water, tea, coffee, juice, clear broth.
Test: Flows freely through a standard straw.
Level 1: Slightly Thick
Liquids that flow slightly slower than water but still pour easily. Examples: fruit nectars, light cream, some nutritional supplements.
Test: Pours freely from a cup but leaves a thin coating.
Level 2: Mildly Thick
Liquids that flow off a spoon but not in a thin stream. Examples: thickened tea, tomato juice, smoothies.
Test: Can be drunk from a cup but not through a standard straw.
Level 3: Moderately Thick
Liquids that can be drunk from a cup but need effort. Examples: thickened coffee, custard, some yoghurt drinks.
Test: Holds shape briefly when spoon is lifted, then flows back.
Level 4: Extremely Thick
Liquids that must be eaten with a spoon. They don’t flow off the spoon when tilted. Examples: thick smoothies, mousses, very thick custard.
Test: Holds its shape on a spoon. Cannot be drunk from a cup.
Kitchen note: This is where texture-modified food begins for many residents.
Level 5: Minced and Moist
Food that is very soft and moist, easily mashed with a fork. Pieces are no larger than 4mm x 4mm. Examples: minced meat in gravy, mashed vegetables, soft fish flakes.
Test: Fork pressure test — mash food with a fork. If it breaks apart easily into small pieces, it’s Level 5.
Kitchen note: This is one of the most common levels in care homes. Residents can chew slightly but need food that requires minimal effort.
Level 6: Soft and Bite-Sized
Food that is soft enough to squash with a fork but comes in bite-sized pieces (no larger than 1.5cm x 1.5cm). Examples: soft diced vegetables, tender meat pieces, soft fruit chunks.
Test: Spoon side pressure test — press food with the side of a spoon. If it breaks apart easily, it’s Level 6.
Kitchen note: Residents at this level can chew but need soft textures. They can handle small pieces, not large or tough foods.
Level 7: Easy to Chew
Normal foods that are easy to chew and swallow. Can include all textures but must be soft, tender, and not dry or tough. Examples: well-cooked vegetables, tender meat, soft bread.
Test: Tongue test — if you can crush it between your tongue and the roof of your mouth, it’s Level 7.
Kitchen note: This is the least restrictive level. Residents can eat most normal foods but need them prepared to be easy to chew.
How to Test Food for IDDSI Compliance
Testing isn’t complicated, but it needs to happen consistently. Here are the standard tests:
The Fork Pressure Test (Level 5)
Press food with the back of a fork. If it mashes easily into small pieces (no larger than 4mm), it passes. If you have to press hard or it doesn’t break apart, it fails.
The Spoon Side Pressure Test (Level 6)
Press food with the side of a spoon. If it breaks apart easily into pieces no larger than 1.5cm, it passes. If it stays intact or you need significant pressure, it fails.
The Tongue Test (Level 7)
Place food between your tongue and the roof of your mouth. If you can crush it with gentle pressure, it passes. If it stays whole, it’s too hard.
The Flow Test (Liquids)
Use a standard 10ml syringe. Draw up liquid and time how long it takes to flow out. Compare to IDDSI timing charts:
- Level 0: 0-1 seconds
- Level 1: 1-5 seconds
- Level 2: 5-10 seconds
- Level 3: 10-20 seconds
- Level 4: Does not flow (must be spoon-fed)
Test every batch. Don’t assume because it worked yesterday it’ll work today.
Common Mistakes in Care Home Kitchens
Not testing consistently
Every batch needs testing. Ingredients change. Equipment changes. Staff change. What passed yesterday might not pass today.
Confusing levels 5 and 6
Level 5 is minced (4mm pieces). Level 6 is bite-sized (1.5cm pieces). The difference matters. A resident on Level 5 could choke on Level 6 food.
Forgetting liquid thickness
Many residents need thickened drinks. If you’re not using the right thickener or not measuring correctly, the liquid could be wrong. This is a choking risk.
Not documenting
If it’s not written down, it didn’t happen. Document what you tested, when, and the results. This protects residents and your team.
Why This Matters for Your Care Home
Resident safety
Wrong textures can cause choking, aspiration (food/liquid going into the lungs), or pneumonia. For residents with dysphagia, this is a life-or-death issue.
CQC compliance
CQC inspectors check how you manage medication, nutrition, and safety. IDDSI compliance is a key part of this. If you can’t show you’re testing and documenting, you’ll get flagged.
Resident dignity
Good texture-modified food looks appetising. Bad texture-modified food looks like mush. Residents deserve meals that look good and taste good, even if the texture is modified.
Staff confidence
When your kitchen team knows the IDDSI levels and how to test, they work with confidence. They know they’re doing it right. That reduces stress and improves outcomes.
How to Train Your Kitchen Team
Start with the basics
Print out the IDDSI levels. Put them on the kitchen wall. Make sure everyone knows what each level looks like.
Practice the tests
Run through the fork test, spoon test, and flow test with your team. Make it hands-on. People learn by doing.
Test together
For the first few weeks, test every batch as a team. Build the habit. Then move to spot checks.
Keep documentation simple
A simple checklist works best: Date, time, what was tested, passed/failed, who tested it. That’s all you need.
Frequently Asked Questions
Do I need to test every meal?
Yes. Every batch of texture-modified food and thickened drinks needs testing. You can’t assume consistency without testing.
What if a resident’s needs change?
Work with the care team and speech and language therapist. They’ll tell you the new level. Update your records and make sure the kitchen team knows immediately.
Can I use a blender for all texture-modified food?
It depends on the level. Level 4 (pureed) usually needs a blender or food processor. Level 5 (minced) might just need mashing. Level 6 (soft bite-sized) needs careful cutting, not blending. Don’t assume one tool works for everything.
Where can I get IDDSI training?
The IDDSI website (iddsi.org) has free resources and training materials. Many organisations also offer face-to-face training. KitchenFlow can arrange IDDSI training for your kitchen team — get in touch to discuss.
What if we don’t have residents on texture-modified diets now?
Residents’ needs change. You might not have anyone on modified diets today, but you will soon. Train your team now so you’re ready when it happens.
Need IDDSI Training or Kitchen Support?
KitchenFlow provides IDDSI-trained chefs and kitchen assistants for care homes. All our staff are trained in the IDDSI framework and understand texture-modified diets.
If you need cover from someone who knows IDDSI inside out, we can help.
Book IDDSI-trained kitchen cover →
Or download our IDDSI Quick Reference Guide for your kitchen team.
