This short refresher video (1:19) walks teachers through how to correctly set up the MiniOne casting tray before pouring gels. It’s designed as a quick reminder for anyone who hasn’t done ABE training in a while.

Key points covered in the video

• Assemble the casting tray The video shows how to place the gel tray into the casting stand so it sits level and secure.
• Insert the comb The comb is positioned at the correct end of the tray to create wells for loading DNA samples later.
• Check the seal The tray must be firmly seated so molten agarose doesn’t leak out when poured.
• Pour the gel Once the tray and comb are in place, you pour the warm agarose into the tray and allow it to set.

Important update noted in the video description

The video mentions that ABE UK now uses 1× TAE buffer instead of 1× SB buffer, which is a change from when the video was originally recorded.