Y'all who have IR cookers most likely know this but I'll chunk it out there anyway.
Sometimes we want to cook something in a container using the SRG, TBE, or other IR cooker. IR rays don't pass through metal. Putting something in metal just lets you cook with conventional heat even though you are using IR cookers.
So, if you want to cook in a container and still get the benefit of IR cooking you can put whatever it is you want to cook in a glass contain...dish, bowl, or whatever. The IR rays pass through the glass and cook as if it were not there.
If you have not cooked in glass using your SRG this will give you another arrow in your quiver.
Dee