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Diy heat press mat.
80 82 bottom temperature gap between heat mat and seed trays.
Because heat reflects back up from the mat rather than going through into your work table top you can press at a lower temperature.
Commercial heat mat surface temperature thermometer placed on top of soil.
This is much better for your garments in particular.
To control heating times use a thermostat or timer.
73 75 degrees f soil temperature.