# Dialled in

> Dialled in describes a grow, room or recipe tuned until results are consistent and near the plant's potential, run after run.

- Canonical: https://genetixbay.com/knowledge/glossary/dialled-in.html
- Also written: dialed in, dialled-in, dialed-in, dial in, dialling in
- Glossary category: Grower slang and culture
- Status: Draft: awaiting expert review · Updated: 2026-10-31
- Licence: CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0/), attribute "GenetixBay cannabis glossary"

Dialled in (US "dialed in") means a grow has been tuned until it performs consistently: environment, light, feeding and irrigation are matched to the cultivar and the room, and results repeat.

## In practice

Getting dialled in is a cycle of measuring and adjusting: logging temperature, [RH](https://genetixbay.com/knowledge/glossary/relative-humidity.md) and [VPD](https://genetixbay.com/knowledge/glossary/vpd.md) through the day, measuring [PPFD](https://genetixbay.com/knowledge/glossary/ppfd.md) across the canopy, tracking feed and [runoff](https://genetixbay.com/knowledge/glossary/runoff.md) [EC](https://genetixbay.com/knowledge/glossary/ec.md) and [pH](https://genetixbay.com/knowledge/glossary/ph.md), and recording dry weight and quality at the end. A dialled-in room hits its targets, for example about 1.2-1.5 kPa VPD in mid flower and an [even canopy](https://genetixbay.com/knowledge/glossary/even-canopy.md) at the planned PPFD, without daily firefighting.

A setup is dialled in for one cultivar at a time. Cultivars differ in nutrient demand, Ca/Mg use, [stretch](https://genetixbay.com/knowledge/glossary/stretch.md) and light tolerance, so a new cut usually needs a few runs. "Test your cultivar" is the GenetixBay approach: record what you change and what it does.

## Don't confuse with

- **Maxed out**: pushing every input to the limit. Dialled in is about consistency, not extremes.

## Related terms

[VPD](https://genetixbay.com/knowledge/glossary/vpd.md), [Crop steering](https://genetixbay.com/knowledge/glossary/crop-steering.md), [Grow journal](https://genetixbay.com/knowledge/glossary/grow-journal.md), [PPFD](https://genetixbay.com/knowledge/glossary/ppfd.md)

## Read more

- [Drain-to-waste drip and crop steering (generative vs vegetative dryback)](https://genetixbay.com/knowledge/systems/drain-to-waste-crop-steering.md)
- [VPD explained: vapour pressure deficit for cannabis growers](https://genetixbay.com/knowledge/environment/vpd-explained.md)