OptimumX 20 L (1,380 W) at a glance
In short: the OptimumX 20 L (1,380 W) scores 8,2/10 in our mini oven review (from €70). Biggest strength: 6 baking functions. Main compromise: temperature only up to 230 °C.
All specifications come from manufacturer data sheets and the Amazon catalogue and were cross-checked before publication. The rating is an editorial overall assessment based on this data; we do not trial products ourselves.
OptimumX 20 L (1,380 W): what works, what doesn't?
What works well
- 6 baking functions: fan oven, fan oven with bottom heat, top, bottom and top/bottom heat individually selectable, a lot of control for the price
- 3 rack heights: allow the position to be adapted to the food's needs
- Double glass door: high-strength double glazing keeps the temperature better in the cooking chamber
- 2 years' warranty: explicitly guaranteed, not a given with no-name ovens
- Timer with continuous mode: switches off when it runs out or runs on in manual continuous mode
Points of criticism
- Temperature only up to 230 °C: other 20 litre ovens reach 250 °C, a little less headroom for very crispy pizza
- Little manufacturer information on dimensions: the manufacturer does not state concrete outer and inner dimensions, which makes planning the space harder
Specifications in detail
| Type | Mini oven with fan |
| Capacity | 20 litres |
| Power | 1,380 W |
| Temperature | 90 to 230 °C |
| Baking functions | 6 (incl. fan oven, fan oven+bottom heat, top/bottom heat) |
| Rack heights | 3 |
| Door | high-strength double glass door |
| Timer | adjustable, with switch-off + continuous mode |
| Accessories | Grill rack, baking tray |
| Warranty | 2 years |
Build quality & everyday use
What carries the OptimumX 20 L (1,380 W) in everyday use: 6 baking functions (fan oven, fan oven with bottom heat, top, bottom and top/bottom heat individually selectable, a lot of control for the price) and 3 rack heights (allow the position to be adapted to the food's needs). We have to be honest about the weaknesses: temperature only up to 230 °C, other 20 litre ovens reach 250 °C, a little less headroom for very crispy pizza.
If you set the device up to save space, make sure it stands on a stable, level surface with some air around it. This protects the mechanics and electronics in continuous use.
Who is the OptimumX 20 L (1,380 W) suited to? (buying advice)
Perfect for:
- ✓Anyone who wants many heating modes and full control
- ✓Buyers for whom a clear 2-year warranty matters
- ✓Small households needing flexible heat control
Less suitable for:
- ✕Anyone looking for the maximum 250 °C for pizza
- ✕Buyers who need exact dimensions before buying
Similar mini oven models
Frequently asked questions about the OptimumX 20 L (1,380 W)
How many baking functions does the OptimumX have?
Is there a warranty on the mini oven?
How many rack heights does the oven offer?
How hot does the OptimumX get?
Verdict: is the OptimumX 20 L (1,380 W) worth it?
A solid option with a clear profile: if you can live with a temperature only up to 230 °C, from €70 you get mainly one thing: 6 baking functions. It suits best: anyone who wants many heating modes and full control.
If you want to compare alternatives, you will find detailed data and reviews on our mini ovens comparison page.
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