Brullen i91 Soft Serve Machine Gravity Feed Non-Pasteurise I91_NP-GF

The Brullen i91 is a single-flavour countertop soft serve machine with a 12 litre mix tank, rated at 210 to 425 serves per hour. Its defining figure is the footprint: at 324 mm wide it is the narrowest machine in the Brullen range by a clear margin. This is the gravity-feed build at 15% to 45% overrun.

Why operators choose the I91_NP-GF

• Only 324 mm wide — the narrowest soft serve machine Brullen makes - 76 mm narrower than the i91 Pro. On a crowded counter that is often the whole decision, and it is worth measuring before comparing anything else
• 105 kg - the lightest machine in the range — still substantial for a bench, but the easiest of these to place
• A 15 A dedicated circuit — dedicated matters: the compressor cycles hard through service and a shared circuit invites nuisance tripping
• Gravity feed: 15% to 45% overrun — overrun is how much air is whipped into the mix, and it is the number that decides both texture and yield. A gravity-feed machine relies on the mix falling into the cylinder, which limits how much air goes in - so you get a denser, more gelato-like product and fewer serves per litre
• Soft-touch operator menu — the controls a staff member actually uses, on a sealed panel that survives a sticky bench
• POM plastic scraper blades — the blades scrape the frozen layer off the cylinder wall. Plastic rather than steel means they wear instead of the cylinder
• R404a refrigerant, air-cooled condenser — no plumbing for the condenser - but it does need airflow around it

Specifications

Venue suitability

The i91 suits cafes and takeaway counters where bench width is the binding constraint. At 324 mm wide and 105 kg it is the smallest and lightest machine in the Brullen range — the trade is output, at 210-425 serves an hour against the i91 Pro's 250-500.

See the full ice cream frozen yoghurt machines range or browse every Brullen model we carry.

Installation & delivery

A 15 A dedicated circuit is required. Dimensions are recorded width x depth x height: 324 mm wide, 783 mm deep, 880 mm tall, weighing 105 kg (120 kg crated). Note it is narrower but deeper and taller than the i91 Pro — measure the depth against your counter as well as the width. The air-cooled condenser needs clear airflow around it.

Warranty terms are per product — see our warranty information page.

Frequently asked questions

Q: What is overrun, and why does it matter more than anything else here?

Overrun is the percentage of air whipped into the mix. It sets both the texture and your yield. A gravity-feed machine runs 15-45% overrun and gives a denser, gelato-like product; an air-pump machine runs 40-80% and gives classic light soft serve. The commercial consequence is the yield: at 80% overrun one litre of mix becomes roughly 1.8 litres of finished product, where at 20% it becomes 1.2. If you are comparing a gravity-feed and an air-pump version of the same machine, that is the difference you are actually choosing between.

Q: How does it compare to the i91 Pro?

The i91 is narrower (324 mm against 400 mm), lighter (105 kg against 115 kg) and does fewer serves (210-425 an hour against 250-500). But it is also deeper and taller - 783 x 880 mm against 750 x 840 mm - so it is not simply a smaller machine. If bench width is your constraint, the i91 wins; if throughput is, the Pro does.

Q: What electrical supply does it need?

A 15 amp dedicated circuit, the same as the i91 Pro. Dedicated is the operative word: the compressor cycles continuously and a shared circuit is how you get a trip mid-service.

Q: Is there an air pump version?

Yes - the i91 air-pump build runs 40-80% overrun for lighter product and substantially more yield per litre of mix, where this gravity-feed build runs 15-45% for a denser result. Both are in our range.

Q: Does it need plumbing or extra ventilation?

The condenser is air-cooled, so there is no water connection for cooling - but it does need clear airflow around it, and boxing it into a tight cabinet will cost you capacity on a hot day. Our data does not record a ventilation clearance figure for this model, so check the equipment manual or ask us before you build it into joinery.

Q: What is the scraper blade made of and why does that matter?

POM plastic. The blades scrape the frozen layer off the inside of the freezing cylinder thousands of times a day, and the choice of material decides what wears out. Plastic blades wear instead of the cylinder, so the consumable is a cheap replaceable part rather than the machine itself.