What matters when buying
Check permission for the intended recipe before comparing capacity and extra functions: a Tower pressure-cooker manual prohibits pressure-cooking split peas because they can foam and obstruct the regulator, while Instant Pot UK says its cookers handle split peas.
| Concern |
What to check |
Who this matters to |
| Split-pea permission and safe use |
Check the exact model’s instructions or an authorised applicable recipe for pressure-cooking peas or pulses, including liquid and pressure-release directions. |
If I plan to make pea soup regularly, I need to know the cooker permits that use before relying on its pressure setting. Around 45% of consumers put model-specific permission and safe operation first. |
| Usable batch capacity |
Compare your usual batch with the model’s pressure-fill limit, not just its stated pot capacity. Instant Pot UK specifies a PC Max 2/3 limit for the Classic 5.7L. |
If I cook several portions at once, a stated litre capacity tells me less than the amount the instructions allow under pressure. For around 33% of consumers, batch-size fit is the primary concern. |
| Extra cooking functions |
Look for functions you would use beyond soup, such as sautéing or air frying, while checking pea-soup permission separately. |
If I also prepare other meals in the same appliance, extra programmes can influence which cooker earns worktop space. Around 22% of consumers prioritise those additional functions. |
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Common questions
Can any electric pressure cooker make split pea soup under pressure?
No: check the exact model’s instructions or an authorised applicable recipe before using it for split peas. A Tower pressure-cooker manual prohibits them because they may foam and block the regulator, whereas Instant Pot UK says its cookers handle split peas. Permission for one cooker cannot be assumed for another.
How much liquid and space should I leave in the pot?
Follow the requirements for your exact cooker and recipe. Instant Pot UK specifies water-based liquid, at least 375 ml for pressure cooking and a PC Max 2/3 fill limit for the Classic 5.7L. Sage’s Fast Slow Pro instructions limit foods that expand during cooking to half capacity; do not apply either model’s figures to a different cooker.
Can I open the cooker when the cooking timer ends?
Only after following your model’s release procedure and confirming that pressure has fully dropped. Do not force the lid; check the model’s instructions for the indicator or other conditions that show it is safe to open.
What product-safety checks matter when buying in the UK?
Keep a record of the exact model and seller, and check UK product-safety alerts and recalls. An Office for Product Safety and Standards report published in August 2026 identified a serious fire risk for model MES6817 specifically, not for electric pressure cookers generally.