Pressure Cookers for Lentil Ragout in Small Kitchens: Fit

Who is this for?

Small-kitchen one-pot cooks

You want to make lentil ragout in one appliance, but need to account for worktop space, storage, the open lid and steam release—not just the stated bowl capacity.

Weeknight lentil-ragout cooks

You want to start aromatics and vegetables in the cooking pot before adding lentils and liquid, rather than washing a separate frying pan.

Multi-function meal planners

You are considering a pressure cooker for other meals too. Extra modes are worth weighing against the space the appliance and its accessories will occupy.

What matters when choosing?

For a small kitchen, establish where the cooker will sit and how you will make the ragout in one pot before deciding whether extra modes or a larger bowl matter to you.

Instant Pot Duo 5.7L

Consider it when: You want pressure cooking and sautéing with published dimensions of 33.5 × 31 × 31.7 cm (depth × width × height), according to Instant Pot UK.

Allow for: The open lid and steam release still need room, and pressure-cooked contents must stay below this model’s two-thirds maximum-fill line.

Tefal Turbo Cuisine CY756140

Consider it when: A 4.8L bowl and one-dial controls appeal to you alongside pressure cooking and sautéing.

Check before choosing: Confirm the external dimensions and required clearances; a smaller bowl does not establish a smaller worktop footprint.

Ninja Foodi OP350UK

Consider it when: You expect to use air frying, grilling or baking as well as pressure cooking and sautéing.

Allow for: SharkNinja UK lists this 6L model at 55.3 × 41.1 × 42.7 cm (length × width × height) and 13.3 kg, making its size and weight important storage considerations.

Concern	What to check	Who this matters to
Footprint and storage	Measure the exact cooker’s external dimensions and weight, then allow room to open the lid and release steam.	If I need to put the cooker away after each meal, I want to know that I can move and store it easily. Around 40% of consumers put footprint and storage first.
One-pot ragout	Confirm in-pot sautéing, the model’s minimum pressure-cooking liquid requirement and its maximum-fill mark.	To avoid using another pan, I need to start the vegetables in the pot and then pressure-cook within its limits. Around 40% of consumers put that one-pot sequence first.
Extra cooking modes	Identify the additional modes you would use regularly and where any accessories would be stored.	If I also cook meals that call for air frying or grilling, those modes could justify keeping a larger appliance. Around 10% of consumers put extra functions first.
Batch capacity	Choose a bowl size for your usual portions and check its pressure-cooking fill limit.	When I make ragout for planned leftovers, I need enough usable room for several portions. Around 10% of consumers put batch capacity first.

Buying pitfalls

Judging kitchen fit by bowl capacity

Published measurements show why litres are not a footprint measurement: Instant Pot UK lists the Duo 5.7L at 33.5 × 31 × 31.7 cm (depth × width × height), while SharkNinja UK lists the OP350UK 6L at 55.3 × 41.1 × 42.7 cm (length × width × height).

Measure your worktop or cupboard and compare the exact model’s dimensions and weight. Leave room for the open lid and a safe steam-release position.
Assuming every stated litre is usable under pressure

Pressure cooking has model-specific liquid and fill requirements. Instant Pot UK specifies at least 375 ml of water-based liquid for the Duo 5.7L and requires contents to remain below its two-thirds pressure-cooking maximum-fill line.

Follow your cooker’s own manual rather than filling to the rim or transferring the Duo’s quantities to another model.
Choosing air-crisp modes solely for ragout

Air frying, grilling and dehydrating serve other cooking tasks; they are not needed for the pressure-cook-and-sauté sequence used for lentil ragout. The Ninja Foodi OP350UK’s listed dimensions and 13.3 kg weight matter if you have to store it between uses.

Choose those additional modes if you expect to use them for other meals and have a practical place for the appliance.
Buying a cooker without identifying the exact model

In August 2026, the Office for Product Safety & Standards reported a serious fire risk involving a specific electric pressure cooker, model MES6817, because of earthing and plug-and-fuse issues. That report does not apply to every 6L cooker.

Check the brand, model number, supplied plug and seller identity, and look for product-safety notices concerning that exact model.

Brands to consider

These product lines offer different combinations of pressure cooking and other functions; compare the particular model and its space requirements rather than choosing by brand alone.

Instant Pot

The Duo 5.7L combines pressure cooking with sautéing, slow cooking, steaming, rice, yoghurt and warming functions.

Instant Pot UK lists dimensions of 33.5 × 31 × 31.7 cm (depth × width × height) and a dishwasher-safe stainless-steel cooking pot and lid.
For pressure cooking, its instructions specify a 375 ml minimum of water-based liquid and a two-thirds maximum-fill line; the full stated bowl volume is not usable under pressure.

Tefal

The Turbo Cuisine CY756140 is a 4.8L electric pressure cooker with one-dial controls and ten automatic programmes.

Its listed functions include pressure cooking, steaming, slow cooking and rice cooking, with delayed start and keep-warm controls.
Check the CY756140’s external dimensions before assuming its 4.8L bowl will fit a restricted worktop.

Ninja

The Foodi OP350UK combines pressure cooking and sear/sauté with modes including air frying, grilling and baking or roasting.

Those additional modes may be relevant if you want to use the appliance for meals beyond pressure-cooked ragout.
SharkNinja UK lists the OP350UK at 55.3 × 41.1 × 42.7 cm (length × width × height) and 13.3 kg; plan where it will sit and how you will move it.

Crock-Pot

The Express CSC051 is a 5.6L cooker offering pressure cooking, slow cooking, steaming and browning or sautéing.

Crock-Pot UK lists eight pressurised programmes alongside manual controls, delayed start and keep-warm.
Confirm the CSC051’s external dimensions and storage clearance if worktop space is tight; bowl capacity does not establish the appliance’s footprint.

Joybuy products

Frequently asked questions

Which functions help with lentil ragout?

Pressure cooking and an in-pot sauté or brown function let you start the vegetables in the same pot before adding lentils and liquid. Air frying is an extra mode for other meals, not a requirement for this ragout.

How much liquid does an electric pressure cooker need for lentils?

Use the minimum and maximum-fill instructions for your exact cooker and adapt the recipe to them. Instant Pot UK specifies at least 375 ml of water-based liquid for pressure cooking in the Duo 5.7L, with contents below its two-thirds pressure-cooking maximum-fill line; those figures are not universal.

Should I do a test run before cooking ragout?

Follow the first-use procedure for your model. Instant Pot’s Duo instructions call for cleaning the relevant parts, fitting the condensation collector and performing a pressure-cooking test run; lid, valve and release procedures can differ on other cookers.

What electrical details should I check before buying?

Confirm the exact model, supplied plug, voltage and documentation are suitable for where you will use it. Instant Pot UK lists a 220–240 V, 50–60 Hz supply for the Duo 5.7L; do not apply that specification to another model. For questions about applicable requirements, check official guidance for your location, as Great Britain and Northern Ireland can differ.

Is a safety notice about one 6L cooker relevant to every 6L model?

No. The Office for Product Safety & Standards’ August 2026 report concerns a specific electric pressure cooker, model MES6817, and identifies earthing and plug-and-fuse issues. Search safety notices using the exact model number rather than treating bowl capacity as a product identity.