Coffee around the gym stop.

Coffee before a workout: what the evidence actually says

The sports science on caffeine and performance is not contested. Caffeine at 3–6mg per kilogram of bodyweight, consumed 30 to 45 minutes before exercise, consistently improves endurance, increases peak power output, sharpens reaction time, and delays the onset of perceived fatigue. These are not marginal gains. Studies across cycling, weightlifting, and sprint performance show measurable improvements across all three.

For a 70kg person, the studied dose range is 210–420mg of caffeine. A double espresso delivers approximately 100–120mg, below that full range but still a real, well-timed dose. It is also a clean delivery format. No beta-alanine tingle. No artificial colouring. No ingredient list you need a biochemistry degree to read. Caffeine affects people differently; if you are pregnant, have a heart condition or are sensitive to caffeine, check with a doctor first.

Why espresso, not cold brew or instant

Not all coffee delivers caffeine at the same speed or with the same cleanness. The format and the bean both matter.

Cold brew, great for mornings, wrong for pre-workout

Cold brew has high caffeine per cup, sometimes higher than espresso when measuring per 250ml. But cold brew is a sustained-release format. The large liquid volume, the slower digestion of cold liquids, and the way cold extraction processes caffeine all mean it enters the bloodstream more gradually. That makes it excellent for a steady-state morning focus session. It is the wrong tool for a sharp, immediate pre-workout window. You want the caffeine spike timed to your first working set, not spread across two hours.

Instant, cheaper, but inconsistent

Instant coffee typically uses Robusta-dominant blends, higher in caffeine by weight, but also higher in bitterness compounds and often with additives and fillers. The caffeine content varies significantly between brands and even between batches. For daily gym use, that inconsistency matters. You want to know exactly what you are putting in, especially when you are training at 6am on a Tuesday.

Espresso, pulled fresh, the right answer

Specialty-grade espresso, pulled fresh, delivers clean and consistent caffeine. The smaller volume (30–60ml) means faster gastric emptying and faster absorption, and a well-extracted shot is smoother and less bitter, so you are not fighting the taste on an empty pre-workout stomach. It is the format built for this use case.

The timing problem that P.S. Coffee will solve

The gym crowd in Ahmedabad already knows coffee works before a session. The problem is not knowledge, it is logistics.

You are at the gym at 6:15am. The nearest specialty coffee opens at 8am. The gym's own vending machine dispenses something technically coffee-adjacent. Neither is the tool for the job.

The Pod is designed to solve this. A P.S. Pod inside or adjacent to a gym, with app ordering, is planned so you can place your order on the walk in from the parking lot. Your double espresso is ready when you finish your warm-up. You drink it, train, and leave, with the whole interaction targeted at under 90 seconds.

We are pre-Pod. But this is exactly the use case the format is designed for, the daily habit that runs on a tighter schedule than any specialty cafe can currently service.

Cold brew post-workout: the recovery drink nobody talks about

Post-workout, your body needs hydration first. But for the afternoon that follows a 6am session, work by 9am, back-to-back meetings until lunch, a second caffeine hit is usually required, and the timing actually works.

Cold brew is the right tool for this moment. Cold brew is naturally lower in acid than hot espresso: the 12-hour cold extraction process draws less of the acidic compounds out of the bean. That makes it significantly gentler on a stomach that has just been put through an hour of physical stress. The caffeine is still there. The smoothness is better. The stomach does not object.

P.S. Black No. 4 will be 12-hour steeped, specialty grade, served cold. For anyone running a morning gym session before a full work day, the pattern is simple: espresso pre-workout, cold brew post-workout. You have covered both the performance window and the afternoon focus without touching anything artificial.

Who the P.S. gym format is built for