Horeca gastro heat buffet warmer 6-hour tray 6 gastro heats are developed for warming food in chafing dishes and are safer than fuel paste. Unlike fuel paste, gastro heats are not highly flammable, odorless, non-toxic, and suitable for repeated use. Furthermore, gastro heats have a stable, calm flame and are soot-free. An additional advantage is that the can does not or hardly gets warm. Gastro heats are available with a burning time of 4 and 6 hours, which is very long compared to fuel paste.