Solve common problems of mainstream combi‑steam ovens on the market
Tackle Industry Pain Points｜4-in-1 Microwave Steam Air Fryer Oven
Combi‑steam ovens are popular for multi‑function cooking.
However, many users report widespread issues.
Uneven baking, poor steam performance, hard‑to‑clean cavities, safety risks and inconsistent quality control.
Many models look all‑round, yet make compromises in every function.
Ternnov Technology has over 10 years of experience in kitchen appliances.
We own integrated R&D and manufacturing capabilities.
We make targeted technical improvements for common industry pain points.
We optimize cavity structure, core systems, safety testing and whole‑unit quality control.
We fix the weak spots of mainstream market products.
Pain Point 1: Uneven baking & poor air‑fry performance
Many mid‑to‑low‑end models use only a single fan for hot air circulation.
The hot‑air flow path is limited.
Large temperature differences exist inside the cavity.
Food gets over‑browned in some areas and under‑cooked in others during baking or air‑frying.
Air‑fried food cannot reach a crispy texture.
Ternnov Technology : 4-in-1 Microwave Steam Air Fryer Oven
It comes with multiple heating elements on top, bottom and rear.
Equipped with triple‑fan hot‑air system for multi‑directional circulation.
Cavity temperature deviation is as low as ±5℃.
It reaches working temperature in only 5.8 minutes.
Heat distributes evenly for baking, air‑frying and steam‑frying.
Multi‑layer baking delivers consistent browning.
You get crispy, low‑oil cooking results.
No more half‑cooked food.
Pain Point 2: Weak steam, water dripping & short steam runtime
Many units have low steam power.
Steaming seafood or fish takes a long time.
Severe condensation drips inside the cavity.
Eggs turn spongy.
Dishes get soggy at the bottom.
Small water tanks require frequent refills for long‑time steaming.
Scale builds up in steam generators.
Steam output drops over time.
Ternnov Technology :4-in-1 Microwave Steam Air Fryer Oven
Dual‑heat‑source steam system: 1000W evaporation plate + 1100W auxiliary heater.
Total steam‑related power reaches approx. 2100W.
Supports fresh steam, high‑temperature steam, micro‑steam and steam‑frying modes.
Built‑in 1L large‑capacity water tank.
Steam runtime lasts around 1 hour under normal working conditions.
Less frequent water refills.
Optional auto water‑inlet & drain version available.
Ideal for heavy‑use and built‑in projects.
No repeated manual water changes.
Preserve authentic flavors of Chinese‑style steamed dishes.
Pain Point 3: Many assembly gaps, difficult cavity cleaning
Most competing ovens use multiple joined metal sheets for the cavity.
Lots of gaps trap grease and condensation.
Bad odors build up over time.
Ordinary stainless‑steel cavities hold grease and are hard to wipe.
Enamel cavities risk chipping and peeling.
Low‑cost coatings degrade quickly under high temperature.
Ternnov Technology: Fully‑welded cavity with ceramic coating
One‑piece fully‑welded cavity structure.
Greatly reduces assembly gaps and dead‑cleaning zones.
Better cavity sealing reliability.
Stainless‑steel base with ceramic coating.
Resists high temperature and corrosion.
Grease wipes off easily.
Balances long‑term durability and easy‑to‑clean performance.
Pain Point 4: Poor microwave performance & hidden safety hazards
Many products use fixed‑frequency microwave with few power levels.
Poor results for reheating and defrosting.
Poor assembly quality may cause door‑seal aging.
This brings microwave leakage risks for household safety.
Ternnov Technology :4-in-1 Microwave Steam Air Fryer Oven
10‑level variable‑frequency microwave, strict leakage testing.
Power adjustable every 100W.
Perfect for defrosting, reheating, micro‑steaming and micro‑baking combined cooking.
Every unit passes professional microwave‑leakage testing before delivery.
Measured leakage is below 0.5 mW/cm².
This is only 1/10 of national safety standard limits.
All machines complete safety verification.
Microwave energy efficiency reaches Class‑1 level at approx. 62%.
Pain Point 5: OEM/ODM products without full testing, high failure rate
Combi‑steam ovens integrate steam, hot‑air and microwave systems.
Many white‑label OEM units lack complete testing workflows.
Electrical safety and overall performance are not fully verified.
High failure rates and high after‑sales repair costs.
Ternnov Technology: Integrated R&D & manufacturing, full‑chain quality control
We own our R&D and manufacturing base.
We control every step: structural design, performance development, prototype testing, assembly and final inspection.
Our lab is equipped with microwave‑leakage testers, electrical‑safety test devices and energy‑efficiency verification equipment.
We block potential faults before products leave the factory.
Every unit delivers stable performance and reliable safety.