Instant Pot Duo Plus 8L vs Breville the Fast Slow GO

What you'll actually notice

Both are stainless-steel pressure multicookers, and neither includes built-in air frying. The choice is therefore unusually clean.

Choose the Instant Pot Duo Plus 8L when 8L batch capacity is the requirement that changes your decision.

Choose the Breville Fast Slow GO when 6L is enough and Natural, Pulse and Auto Quick pressure release matters more than the extra two litres.

These are both focused stainless-steel pressure multicookers without built-in air frying, which removes a lot of noise from the comparison. Duo Plus gives you an 8L pot; Breville gives you 6L and a more explicit Natural, Pulse and Auto Quick pressure-release workflow.

The right choice is therefore not which brand has more modes. It is whether your recurring batch size needs 8L and whether Breville's release controls are useful enough to outweigh the smaller pot. Both can coexist with a separate air fryer without duplicating crisping hardware inside the multicooker.

What changes the choice

Capacity is the durable difference

The Instant Pot uses an 8L 304-grade stainless-steel inner pot; the Breville uses a 6L stainless-steel cooking bowl. That two-litre gap matters when soups, stocks, family meals or meal-prep batches regularly make 6L feel restrictive.

If 6L already covers your cooking, extra capacity stops being decisive and the Breville's pressure-release workflow becomes more relevant.

Stainless steel does not separate them

Both records use stainless-steel cooking vessels. The Instant Pot inner pot is specifically 304-grade (18/8) and not stovetop-safe. The Breville record does not support an equivalent stovetop-use claim, so none is invented.

A stainless-steel preference keeps both on the shortlist; it does not create a winner or prove better cooking performance.

The pressure-release experience differs

Instant Pot uses an EasySeal lid with Easy Release Switch. Breville supports Natural, Pulse and Auto Quick release options.

These are different interaction models, not evidence that either appliance is objectively safer or faster. For frequent pressure-cooker users, Breville's named release paths can be the more meaningful distinction once 6L is enough.

Program counts and physical size have limits as comparison tools

Instant Pot lists 13 smart programs; Breville lists 14 shortcuts. A one-count difference is not a useful measure of capability or quality.

Breville is 31cm W × 35cm D × 33cm H. The current Instant Pot record does not resolve dimensions, so this comparison cannot certify an overall compactness winner.

What this means: capacity is the main physical difference, while pressure-release workflow is the main interaction difference. Stainless steel is shared, so it should not be used to manufacture a winner.

Switch when: choose Duo Plus when 8L batch headroom is regularly useful. Choose Breville when 6L covers your meals and its pressure-release controls matter more than the extra capacity.

The practical choice

Think about your largest recurring pressure-cooked batch. If it fits comfortably in 6L, Breville can give you a focused stainless workflow without paying for unused capacity. If you routinely cook larger meal-prep or family batches, Duo Plus has the clearer structural advantage.

After capacity, pressure release is the useful tie-breaker. Breville's Natural, Pulse and Auto Quick options give the release stage more explicit control. That matters to shoppers who vary release style by recipe; it matters much less if you use the same simple routine most of the time.

Neither model is trying to replace a dedicated air fryer. If built-in crisping becomes part of the brief, leave this pair rather than forcing either focused pressure cooker into the wrong role.

A useful final check is whether the winning product changes a weekly cooking routine, not merely a specification. If the deciding feature would rarely be used, keep the simpler architecture. If it repeatedly removes a second batch, lid change, appliance transfer or capacity constraint, it deserves more weight in the choice.

When to choose Instant Pot Duo Plus 8L

Choose it when a 6L pot would repeatedly constrain family or meal-prep batches and you want a stainless-steel pressure multicooker without built-in crisping.

When to choose Breville Fast Slow GO

Choose it when 6L comfortably covers your normal meals and Natural, Pulse and Auto Quick pressure-release options are a recurring ownership benefit.

Choose neither when

If built-in air frying is a core requirement, leave this pair. The Ninja Foodi OP350ANZ adds pressure + crisp through two lids, while the Ninja Foodi SmartLid OL650 puts pressure and crisping under one SmartLid.

PIQSY conclusion

Instant Pot wins the capacity decision; Breville becomes the better fit only when 6L is already enough and its pressure-release workflow is the feature you will use. Do not choose Breville because 14 is larger than 13, or Instant Pot simply because 8L is a larger number.