Deep-Work Hydration Cheat Sheet: One Bottle, Four Checkpoints
The short version
- One 600ml bottle, refilled twice, gets you through a 3-hour block.
- Four checkpoints, not continuous sipping — sipping while focused just doesn't happen.
- Checkpoint 1: before you start. Checkpoint 4: when you close the laptop.
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The problem with 'sip water while you work' advice is that it assumes you'll remember to sip while you're focused — which is precisely the state where you won't. This cheat sheet replaces continuous sipping with four fixed checkpoints tied to the block itself, not the clock.
One 600ml bottle, refilled twice, covers a standard 3-hour deep-work block without needing you to track ml totals in your head.
Questions people actually ask
Roughly 600-1200ml across a 3-hour deep-work block, split into checkpoints tied to the session (start, midpoint, two-hour mark, end) rather than continuous sipping, which doesn't survive real focus.