The best fermenter I've found is a 3 gallon ice tea dispenser from Walmart. It is clear with a pale green tint, and the lid fits into a taper on top and seals very well. It comes with a vent hole..... You can't open one if the vent is plugged due to the tight seal. I drill the vent out and attach a fermentation lock using clear silicone. Acrylic is considered the most food safe of all plastics. I rack into my cold crash / bottling container using the spigot, and also use it to take samples. It's a superb fermenter for about $20, and extremely easy to clean, unlike the Brew Demon which I also have a copy of. The Brew Demon has internal "features" such as the letters and the threads for the lid that make cleaning it a bit of a pain. This is absolutely smooth. It also makes top cropping the krausen extremely easy. I top crop with a boiled ladle, and the top crop yields extremely high quality yeast, ready to go, Below is a link to a photo on Dropbox......... For some reason I can't insert an image today.
https://www.dropbox.com/s/ls2pz97xphr9bam/beveragedispenser.jpg?dl=0
H.W.