Getting Started

Say you are given an instruction to keep the air temperature above 65℉. This is how you can translate this requirement into a grow recipe:

<?xml version="1.0" encoding="UTF-8"?>

<recipe>

  <default>
    <air>
      <temperature min="18.3" />
    </air>
  </default>

</recipe>

Notice the conversion from Fahrenheit to Celsius. All metrics defined in a grow recipe are standardized to SI. A complete list of metric types and their units can be found in Metrics.

Next, say you are now given a second instruction keep the air temperature between 75℉ and 85℉ during flowering. You can add this second instruction into you existing recipe:

<?xml version="1.0" encoding="UTF-8"?>

<recipe>

  <default>
    <air>
      <temperature min="18.3" />
    </air>
  </default>

  <flowering>
    <air>
      <temperature min="23.9" max="29.4" />
    </air>
  </flowering>

</recipe>