GOPrep Portable Formula Feedmaker Kit

Where the Perfect Prep Day & Night and Baby Brezza machines in this category are countertop appliances built for repeated use in one place, the GOPrep is solving the away-from-home version of the same problem. One insulated flask holds boiling water, the other rapidly cools a mixed feed to a safe temperature, with a star-shaped indicator on the lid that changes colour once it's ready — roughly two minutes from start to a feedable bottle, according to Tommee Tippee.

At £34.99 it's far cheaper than either prep machine here, which makes sense given it does one thing (a single on-the-go feed) rather than repeated one-touch dispensing at home. It's not a replacement for a Perfect Prep or Formula Pro if you're preparing feeds all day; it's better thought of as the travel companion to one of those machines, similar to how the Nuby powder dispensers pair with the machines already in this category rather than compete with them directly.

Cleaning is more involved than a simple bottle: two narrow flasks need washing after each use, and while it's dishwasher-safe on the top rack, that's less convenient than wiping down a single unit. Hygiene-wise it leans on genuinely boiling water to kill bacteria before cooling, which follows NHS guidance for made-up formula, but the powder measuring itself is still manual — there's no automated dosing the way the Baby Brezza claims.

Suited to parents who already have a machine at home and want a reliable away-from-home option, rather than anyone looking for their only formula prep solution — for that, the machines elsewhere in this category do more of the work.