Is this glass

I cant tell if this product is glass or plastic… it doesnt say exactly… what do you think…?? ... allon.html

I believe it’s plastic. It would almost have to be plastic to make it ported.

The BMB is plastic.

is plastic acceptable to you for a fermenter??

Plastic is acceptable for fermentors. The BMB is flexible, so needs to be handled differently than a glass carboy or plastic bucket. It should be picked up by holding the bottom. Air lock should be removed when moving to avoid suck back into the fermentor. It can not be rocked on the bottom edge to aerate the wort, or it may crack.
You can check other internet sites for more information.