The Pomodoro Technique — what it’s good for, and where it stops working

The Pomodoro Technique involves working in short, timed sessions — typically 25 minutes — with a short break after each one and a longer break after a few sessions. It is one of the most widely used methods for getting started and staying focused, but the scientific basis for it is less robust than its popularity might suggest. It works best as a way of lowering the barrier to getting started, and it works worst if the breaks are spent on your mobile.

How it works

The method was developed by Francesco Cirillo in the late 1980s, when, as a student, he wanted to overcome his own procrastination. He used an egg timer shaped like a tomato — ‘pomodoro’ in Italian — and thus gave the method its name.

The basic principle is simple:

1. Choose a task.
2. Set a timer for 25 minutes and work solely on that task.
3. When the timer rings, take a 5-minute break.
4. After four sessions, take a longer break of 15–30 minutes.

The numbers aren’t set in stone. Many people use longer sessions, such as 50 minutes with a 10-minute break. The point is that the session has a fixed end time.

Why it helps to get started

The hardest part of most tasks is getting started. The discomfort often stems from the task feeling overwhelming and undefined. A 25-minute timer makes it small and defined: you don’t need to write the whole report, just work on it until the timer rings. This lowers the barrier to entry, and once you’ve got started, you’ll often carry on.

At the same time, having a clear end point makes it easier to resist other distractions. “I’ll check my phone when the timer rings” is a promise that’s easy to keep, as the wait is short and fixed. It’s a simple version of what the article on deep work without a mobile phone refers to as setting the rules before the urge strikes.

What the research says

Despite the method’s popularity, there are few studies that have tested it directly. One of the more thorough studies was carried out by Biwer and colleagues. They compared students who took fixed breaks according to the Pomodoro principle with students who decided for themselves when to take a break.

Those with fixed breaks reported less fatigue and a better mood whilst studying. However, there was no clear difference in how much they actually got done.

That’s an honest finding to take away. The Pomodoro Technique seems to make work more bearable, which in itself can be worth a great deal — especially for those who find it hard to get started or who burn out easily. But there’s no evidence to suggest that it makes you more productive in itself. Anyone who sells it as a scientifically proven productivity tool is exaggerating.

The break is where it goes wrong

The break is meant to be a rest. For many, it instead turns into five minutes on the phone, which becomes fifteen, and by the time you return to the task, your thoughts are still caught up in that stream.

There’s a reason why this happens. Sophie Leroy has shown that attention that leaves a task doesn’t return immediately — part of it lingers on what you were just doing, something she calls ‘attention residue’. A flow is full of small, unfinished tasks that leave precisely such residues. A break spent on your phone can therefore make it harder to get back into your work than no break at all.

Let the break be boring. Stand up, fetch some water, look out of the window, stretch. It sounds uninspiring, but that’s precisely what allows the brain to rest rather than take in new input.

Put your phone out of reach for the entire block, including the breaks. If you only allow yourself to use your phone during the long break, it becomes a reward rather than an interruption.

When fixed sessions aren’t suitable

The Pomodoro technique works least well once you’ve got into a deep flow with a demanding task. Being interrupted by a timer in the middle of a train of thought can cost you more than the break is worth. Many people who use the method therefore treat the timer as a reminder rather than a command: if it rings whilst they’re making good progress, they carry on.

The method is also less suitable for work dictated by others — meetings, customer calls, on-call duty. In such cases, it’s better to protect the blocks of time you actually have.

Anyone who wants to understand why short, focused blocks work better than trying to do several things at once can read the article on multitasking. The full picture of how to structure your working day can be found in the guide on focus at work.

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Zenith Protocol is a 30-day impulse control programme that trains you to resist the urge to reach for your phone — even during breaks. It’s free to get started.