The main difference between the Instant Pot Duo and Duo Plus is that the Duo Plus adds a third pressure setting (low), extra smart programs, a steam release switch, and a larger display. The Duo Plus is a modest upgrade from the Duo, not a complete overhaul, so your choice depends on whether you need those extras.

Quick Answer

The Duo and Duo Plus both are 7-in-1 multi-cookers, but the Duo Plus offers 9-in-1 functionality with three pressure levels, additional programs like Egg and Cake, a steam release switch, and a clearer LCD screen. The Duo is simpler and more affordable.

  • Pressure Levels: Duo: High only; Duo Plus: Low, High, and Ultra (high with adjustable keep-warm).
  • Smart Programs: Duo: 7 (Soup, Meat/Stew, Bean/Chili, Poultry, Rice, Multigrain, Porridge); Duo Plus: 9 adds Egg and Cake.
  • Steam Release: Duo: manual toggle; Duo Plus: switch with steam diverter.
  • Display: Duo: basic LED; Duo Plus: larger LCD with progress bar.
  • Wattage: Both 1000W (6-quart) or 1200W (8-quart).

Pressure Levels and Cooking Flexibility

The Duo Plus introduces a third pressure setting: Low (5.8–7.2 psi), High (10.2–11.6 psi), and an Ultra setting that lets you adjust the keep-warm temperature. The Duo only has High pressure (10.2–11.6 psi). Low pressure is useful for delicate foods like fish, vegetables, or eggs, where high pressure might overcook them. If you often cook seafood or soft vegetables, the Duo Plus gives you more control.

Extra Smart Programs: Egg and Cake

The Duo Plus adds two dedicated programs: Egg and Cake. The Egg program cooks hard-boiled eggs with consistent results using low pressure, while the Cake program bakes moist cakes using the pot-in-pot method. The Duo lacks these presets, but you can still cook eggs and cakes manually with custom time and pressure settings. The presets just make it more convenient with optimal time/temperature defaults.

Steam Release Mechanism

A physical difference: the Duo Plus has a steam release switch that you slide to Quick Release or Natural Release, with a steam diverter that directs steam downward to avoid burns. The Duo uses a traditional steam release handle that you turn to vent. The Duo Plus design is slightly safer and easier to operate, especially when releasing steam with one hand.

Display and Controls

The Duo Plus features a larger, backlit LCD display with a progress bar that shows cooking stage. The Duo has a smaller, basic LED display without progress indication. Both have push-button controls, but the Duo Plus buttons feel more responsive and the screen is easier to read from across the kitchen. The Duo Plus also adds a delay timer up to 24 hours (Duo: up to 24 hours as well).

Which One Should You Buy?

Choose the Duo if you want a reliable, straightforward pressure cooker without extras and want to save money. It handles all standard pressure cooking tasks well. Choose the Duo Plus if you frequently cook eggs or cakes, want low-pressure control, prefer the safer steam release, or like seeing a progress bar. The Duo Plus is a small step up in convenience and versatility. Both models have the same capacity options (3, 6, 8 quart) and come with the same accessories (steam rack, rice paddle, measuring cup).

Pro Tips

  • Use the Duo Plus’s low pressure for cooking frozen vegetables or fish fillets to avoid mushiness.
  • For perfect hard-boiled eggs in the Duo Plus, use the Egg program with 1 cup water and a 5-minute Natural Release.
  • If you own a Duo, you can replicate the Cake program by using a trivet and a springform pan, pressure cooking on High for 30 minutes.
  • The Duo Plus steam diverter can be removed for cleaning; soak it in vinegar to remove mineral buildup.

Common Mistakes to Avoid

  • Assuming the Duo Plus cooks faster than the Duo — both reach pressure in similar times; the extra programs only change presets.
  • Buying the Duo Plus solely for the Cake program if you rarely bake; the manual method on Duo works fine.
  • Forgetting that the Duo Plus’s steam release switch must be set to ‘Vent’ for Quick Release; leaving it on ‘Seal’ will keep pressure locked.
  • Thinking the Duo Plus has a larger capacity — both models offer identical pot sizes and wattage for the same quart size.

FAQ

Can the Duo Plus replace a rice cooker?

Yes, the Duo Plus has a Rice program that cooks white rice well, but for perfect sushi rice or large batches, a dedicated rice cooker may be better.

Do both models have a yogurt function?

Yes, both the Duo and Duo Plus have a Yogurt program that can ferment milk into yogurt.

Is the Duo Plus worth the extra cost?

If you value low pressure, egg/cake presets, and the steam diverter, the Duo Plus is worth it. Otherwise, the Duo offers the same core performance for less.

The Bottom Line

Both the Instant Pot Duo and Duo Plus are excellent multi-cookers that share the same fundamental pressure cooking capabilities. The Duo Plus adds thoughtful refinements that make it slightly more versatile and user-friendly, but the Duo remains a workhorse that handles most recipes. Your choice comes down to whether the extra features justify the price difference. Check your cooking habits — if you rarely adjust pressure or bake, stick with the Duo.

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