Microwave Oven Buying Guide India: Solo vs Grill vs Convection, Capacity and Power Explained
A microwave can be one of the most frequently used appliances in a kitchen—but only if you buy the right type. Some households need little more than quick reheating and defrosting. Others want to grill paneer, bake cakes or roast food. Paying extra for functions that remain unused is as wasteful as buying a basic model and expecting it to behave like a conventional oven.
This guide explains the differences between solo, grill and convection microwave ovens, how to choose capacity and wattage, and what to check before installing one in an Indian kitchen.
1. Solo vs grill vs convection: choose by cooking habit
Solo microwave: Uses microwave energy for reheating, defrosting and suitable basic cooking. It is generally the simplest and often the most affordable type. It does not brown or crisp the surface like a grill or convection heater.
Grill microwave: Adds a heating element for surface browning and grilling. Depending on the model, combined microwave-and-grill modes can heat food while browning the top. It can suit sandwiches, paneer, vegetables and snacks, but a grill function is not the same as fan-assisted baking.
Convection microwave: Combines microwave heating with a heating element and fan that circulates hot air. It can support baking, roasting and browning, alongside ordinary microwave functions. The exact modes and accessories vary by model.
| Type | Best suited to | Main limitation |
|---|---|---|
| Solo | Reheating, defrosting, simple cooking | No conventional browning or baking |
| Grill | Reheating plus surface browning and grilling | Does not necessarily provide full convection baking |
| Convection | Reheating, baking, roasting and broader cooking | Costs more; capacity and results differ from a full-size oven |
Choose a convection model only if you expect to use its baking or roasting capability. If your main task is warming leftovers and milk, a solo model may do the job at a lower cost.
2. Microwave vs OTG: are they substitutes?
An OTG (oven, toaster and griller) uses heating elements to cook food in a heated cavity. It is designed for baking, toasting and grilling. A microwave uses electromagnetic energy for rapid heating of food; a convection microwave adds fan-assisted hot air for oven-style cooking.
An OTG can be a sensible choice for someone who primarily bakes and wants a dedicated oven cavity. A convection microwave may be more versatile for a household that also reheats and defrosts food frequently. Neither automatically replaces the other for every recipe, quantity or texture. Consider cooking volume, preheating time, counter space and the type of dishes you prepare.
3. How much capacity do you need?
Microwave capacity is measured in litres, but the number alone does not tell you whether your regular dishes will fit. Household size and cooking style are useful starting points:
- A compact 17–20 litre cavity may suit a single person, couple or light reheating.
- Around 21–27 litres can suit many small and medium households.
- Around 28–32 litres offers more room for larger plates, casseroles and family portions.
These are broad shopping ranges, not strict family-size rules. Check the internal turntable or usable cavity dimensions and the maximum dish size. A large litre figure does not guarantee that a wide baking tray will fit.
Measure the counter or cabinet space, including ventilation clearance and door swing. Built-in models have specific cabinetry and ventilation requirements; do not place a countertop model inside a closed cabinet unless the manufacturer explicitly permits it.
4. Wattage: input power vs cooking output
Microwave listings can show different wattage figures. The microwave output wattage describes the energy delivered for cooking; the electrical input rating describes power drawn from the mains. Do not confuse the two.
Higher microwave output can reduce cooking time for a given task, but the right setting and duration still depend on food quantity, starting temperature, container shape and recipe. A 900 W output model is not automatically more efficient than a 700 W model for every use.
Check:
- Microwave output power and available power levels.
- Grill-element rating, if relevant.
- Convection temperature range and modes.
- Total electrical input and rated current.
- Whether your kitchen circuit and socket meet the manufacturer's requirements.
Use a properly earthed wall socket and follow the installation manual. Avoid extension boards unless the manufacturer and a qualified electrician confirm they are suitable for the appliance's load.
5. Cooking modes and features worth paying for
Useful features depend on how you cook:
- Defrost by weight: helpful for frozen food, but food may need turning or separating.
- Power levels: allow gentler heating for delicate foods.
- Convection temperature control: important if you plan to bake or roast.
- Combination modes: can reduce cooking time for selected recipes while adding browning.
- Child lock: useful in a busy household.
- Timer and clear display: make everyday use easier.
- Easy-clean interior: helps manage splashes and food residue.
- Turntable on/off or rack accessories: useful only when compatible with the selected mode.
Auto-cook menus are convenient presets, not a replacement for checking portion size and recipe instructions. Smart connectivity, app control and decorative finishes are optional.
6. Microwave-safe cookware and safety
Use containers explicitly labelled microwave-safe and follow the manufacturer's instructions. Ordinary metal cookware should not be used in microwave mode unless the manual specifically identifies an approved accessory or combination mode. Metal racks supplied for grill or convection functions may be permitted only in the specified modes.
Avoid sealed containers because steam pressure can build up. Use vented covers and open lids as directed. Do not heat eggs in shells or tightly sealed food. Liquids can become superheated and erupt when moved; use microwave-safe containers, allow standing time and handle carefully.
For convection and grill modes, the cavity and accessories become hot. Use suitable oven gloves and keep plastic items away from grill elements. Never operate the appliance empty unless the manual expressly allows a particular procedure.
7. Installation and ventilation
A microwave needs a stable, level surface and the clearance specified in its manual. Air vents must remain unobstructed. Check the door can open fully and that the turntable can rotate without hitting nearby objects.
For built-in models, confirm cabinet dimensions, ventilation openings and electrical requirements before ordering. For countertop units, measure the full depth including the door and rear clearance. Avoid placing the microwave next to a heat source or where steam and water can enter the controls.
8. Cleaning and maintenance
Wipe spills after the cavity cools. Food residue can absorb microwave energy and become difficult to remove. Use a soft cloth and cleaning method recommended by the manufacturer; avoid abrasive pads that can damage coatings. Keep door seals, vents and the turntable area clean.
If the door, latch, seal or casing is damaged, stop using the appliance and contact authorised service. Do not attempt to repair high-voltage components yourself. A microwave can retain dangerous electrical charge even after it is unplugged.
9. Warranty and after-sales service
Compare the complete warranty, including magnetron, cavity, PCB, other parts and labour. Some brands advertise a long magnetron warranty that does not mean every component has the same coverage. Check exclusions, authorised service availability and whether registration is required.
Keep the invoice, model and serial number. Confirm the exact accessories included in the box; baking trays, racks and specialised cookware may be sold separately.
10. A practical pre-purchase checklist
1. Decide whether you mainly reheat, grill or bake.
2. Choose solo, grill or convection accordingly.
3. Check usable cavity dimensions, not only litres.
4. Compare microwave output wattage and electrical input separately.
5. Verify convection temperature range and accessories if baking.
6. Measure counter or cabinet space and ventilation clearance.
7. Confirm the socket, earthing and circuit are suitable.
8. Check child lock, cleaning and control features you will actually use.
9. Read magnetron, parts and labour warranty terms separately.
10. Confirm local authorised service support.
Frequently asked questions
Is a convection microwave better than a solo microwave?
It offers more cooking functions, including supported baking and roasting. It is only better value if you will use those functions; a solo model can be perfectly adequate for reheating and defrosting.
Can a convection microwave replace an OTG?
It can handle many oven-style tasks, but cavity size, heating behaviour, accessories and batch capacity differ. Frequent bakers may prefer a dedicated OTG or conventional oven.
What capacity is suitable for a family of four?
A 25–32 litre range is a useful starting point for comparison, but check dish dimensions and the cooking you plan to do. Household size alone does not determine capacity.
Does higher wattage mean a better microwave?
Not necessarily. Compare output power, modes, capacity, electrical input and the manufacturer's performance information. Higher output can heat faster but may not be necessary for occasional use.
Can I use steel utensils in a microwave?
Do not use ordinary metal utensils in microwave mode. Follow the manual for any supplied metal rack or accessory and the specific grill or convection mode in which it is approved.
The Bargain Pundit verdict
Buy a microwave for the jobs you actually perform. A solo microwave is often enough for everyday reheating; grill adds surface browning; convection is the choice for households that will use baking and roasting. Match capacity to your dishes and counter space, check wattage correctly, and do not overlook ventilation, safe cookware and warranty details. The best-value model is the one whose functions you will use regularly.
Sources and further reading
- LG India, Which Microwave Type Is Right for You: Solo, Grill or Convection?: https://www.lg.com/in/appliances/faq/microwaves/which-microwave-type-is-right-for-you/
- LG India, Microwave Size & Buying Guide: https://www.lg.com/in/magazine/microwave-size-and-buying-guide/
- LG India, Solo vs Grill vs Convection vs OTG: https://www.lg.com/in/magazine/solo-vs-grill-vs-convection-vs-otg/
- U.S. Food and Drug Administration, Microwave Oven Radiation: https://www.fda.gov/radiation-emitting-products/home-business-and-entertainment-products/microwave-oven-radiation
Editorial note: Features, capacity, power and permitted accessories vary by model. Always follow the exact product manual and electrical installation requirements.
