By clicking a retailer link you consent to third party cookies that track your onward journey. If you make a purchase, Which? will receive an affiliate commission which supports our mission to be the UK's consumer champion.

CDASL400SS

Electric
Catalytic cleaning
Single

£399View retailers

Test score

Lowest available prices

Sign up to unlock the full expert review

The SL400SS is a multifunctional oven from Nottingham-based manufacturer CDA. Its control panel looks hi-tech as everything is operated using LED touch controls, and there are no dials or knobs to spoil the aesthetic. But how well does it cook? We’ve tested this oven to find out whether it bakes delicious cakes and grills perfect toast. Read the full review to see how it fared.

pros

Content has been blurred out, please log in to view.

cons

What's included?

What is it?
Does the oven stick to the right temperature?
How well does it cook?
What's the grill like?
How easy is it to use and clean?
Should I buy it?

Full Access first month £5, then £10.99 per month, cancel at any time

KEY TEST RESULTS
Accuracy of oven controls
Grill
Cleaning

Jul 2021First reviewed by Which?
Oct 2020Released

The overall Which? test score is made up of the following star ratings, all determined by our rigorous lab tests.

How we test built-in ovens

14 Dec 2023

Oven heat distribution

How we test oven heat distribution

We measure how evenly heat is distributed around the oven cavity by baking trays of shortbread on different levels and assessing how evenly they turn out.

Accuracy of oven controls

How we test accuracy of oven controls

This measures how closely the oven sticks to the temperature we set it at. Some ovens veer a long way from the correct temperature, while others are very accurate.

Preheating speed

How we test preheating speed

We measure how quickly the main oven, and the top oven if there is one, heats up to two different set temperatures.

Grill

How we test grill

We record which grills spread their heat evenly far and wide, and which ones will have you moving food around to get it evenly browned.

Ability to supply heat

How we test ability to supply heat

We bake a large fatless sponge cake and measure the evenness of browning and how well it rises. This is a measure of how consistently and evenly the oven spreads heat around the cavity.

Ease of use

How we test ease of use

Our assessors check how easy the oven and grill are to use. This includes using the controls, assessing how clear the markings around the buttons and dials are, and the ease of opening and closing the door. They also check how easy it is to adjust shelves and to load and unload food in both the oven and grill.

Cleaning

How we test cleaning

This is the ease of cleaning by hand, and also with any self-clean function.

Flexibility of space

How we test flexibility of space

We test the flexibility of space inside ovens with joints of beef, chickens and turkeys on roasting trays to see whether the space provided, and the shelf arrangement, allow them to fit in. We then check whether the ovens are flexible enough to allow another roasting tray to be fitted in above. We carry out this test on both top and main ovens.

Energy efficiency

How we test energy efficiency

We simulate roasting a whole chicken by heating a 2kg brick in the main oven for 1hr 40 mins. Electric conventional ovens are set to 200ºC, electric fan ovens are set to 170ºC and gas ovens at gas mark 6. We measure how much energy the oven uses overall, and also how much energy it uses per litre. Both these recordings feed into the energy efficiency star rating.

General
Type	Single electric built-in
Colour	Stainless steel/black
Main oven capacity	69 litres
Main oven usable volume	52 litres
Height	58cm
Width	55cm
Depth	55cm
Annual running costs	£52.30
Supplied with 13 A plug	No
Manufacturer guarantee	2 years
Manufacturer guarantee terms	CD built-in ovens have a two-year labour guarantee and a five-year parts guarantee as standard.
Fuel type	Electric
Size	Single
Oven size	Single
Built-in or built-under	Built-in

Features
Meat probe	No
Selfclean	Catalytic cleaning
Smart oven	No
Steam oven	No

Compare retailers

Prices updated daily

Prices are ordered from lowest to highest, irrespective of retailer rating or stock, and exclude any potential delivery costs. We are not able to show every possible retailer and cheaper prices may be available.

Suggested Alternatives

John Lewis

JLBIOS645

Electric
Pyrolytic cleaning
Single

£449View retailers

Test score

Beko

AeroPerfect BBXIF22100S

Electric
Not self cleaning
Single

£189View retailers

Test score

Indesit

IFW 6330 BL

Electric
Not self cleaning
Single

£150View retailers

Test score

Best double ovens for 2024
Our pick of the best double ovens – including cheap, spacious and built-under ovens that cook to perfection
Best built-in ovens for 2024
Our experts rigorously test built-in ovens to bring you our in-depth reviews. Find a Best Buy oven that's quick, effective and easy to clean
How we test built-in ovens
Which? tests tell you which ovens you can trust to perfect your bakes. But how do we do it? Here's how we test built-in ovens

All built-in oven advice

CDASL400SS

Lowest available prices