Pierre Freysinger

Pierre Freysinger, IT & UX Manager

Pierre Freysinger is the IT and UX manager at All Cool. He maintains the site's infrastructure, the product database and the integrations with our partners, and above all makes sure navigation stays simple despite the sheer number of technical spec sheets. Trained in computer science in Strasbourg and then in human-computer interaction, he wears the fairly rare double hat of developer and interface designer. That training shapes his whole approach to work: a website, like an appliance, is judged as much by its ergonomics as by what's under the hood.

That same ergonomist's eye is what naturally made him the team's fridge tester. A mini fridge or a wine cabinet is now controlled as much through a screen or an app as through a simple dial, so Pierre puts every model through its paces on the accuracy of the temperature display, the readability of the settings in the middle of the night, and the logic, or lack of logic, of the control menus. For him, the comparison is more than a figure of speech: he built a homemade watercooling loop to cool his own servers, which leaves him particularly well placed to judge the quality of a compressor or a heat sink. He is not shy about taking apart an uncooperative unit to check how much care went into its internal components.

On best-batteries.com, All Cool's sister site devoted to batteries and portable power, Pierre holds a comparable IT and UX role, where he focuses instead on charging standards and connector issues. The two roles feed into each other: the same attention to detail that drives him to hunt down a poorly designed menu on a fridge also leads him, on the other site, to pick apart a badly implemented USB-C port.

Single and a self-confessed geek, Pierre spends his evenings on home electronics projects built around Raspberry Pi and Arduino, when he is not escaping into a video game or a tabletop role-playing session. His German, inherited from Alsatian roots, lets him easily follow technical documentation and manufacturers from Central Europe. True to form, he often starts a test by switching off every unnecessary beep on a device: for him, a good product should still make sense once stripped of its sound gimmicks.

Pierre has carried out 19 product tests in the Fridges category.

Articles by Pierre (4)

Cleaning the inside of a fridge with a sponge and baking soda Guides

How to Clean a Fridge?

Lingering odours, blackening door seals, sticky shelves: a poorly maintained fridge uses more power and keeps food less well. Here's the proper method, no harsh products, for a full clean in under an hour.

Pierre Freysinger Published on 10 August 2026 by Pierre
Open freezer mid-defrost, frost sheets melting off the walls with a towel laid on the floor Guides

How to Defrost a Freezer?

Frost eating into your storage space, a compressor running longer than it needs to: defrosting a freezer is simple, as long as you avoid two or three mistakes that can damage it. The complete method, the fastest way to do it, and the one upgrade that makes this chore disappear for good.

Pierre Freysinger Published on 8 August 2026 by Pierre
Interior kitchen of a converted campervan, wooden worktop and low storage, the kind of space where a compressor fridge is fitted News

Compressor fridges for vans: the miniaturisation trend continues

Ever more compact variable-speed compressors, natural refrigerants, no sensitivity to tilt: the compressor fridge is steadily winning ground from the absorption fridge in vans and campervans. Here’s a look at a trend that’s here to stay.

Pierre Freysinger Published on 4 August 2026 by Pierre
Compressor cooler open on a van's tailgate, filled with drinks and fruit facing the sea Insights

How Does a Compressor Cooler Work?

Compressor, refrigerant gas, vacuum insulation: how does a compressor cooler actually get below 0 °C, miles from any mains socket? We take the principle apart, step by step.

Pierre Freysinger Published on 1 August 2026 by Pierre

Updated on August 9, 2026