You can absolutely use these for beer. In theory the difference in geometry of the fermenters will change the yeast character by a tiny amount as the surface area of the wort on the yeast and the way the yeast will circulate will be slightly different from a standard round or conical fermenter. Though most yeast manufacturers will tell you that difference is practically imperceptible.

works great for beer. I have two one for primary the other for secondary

Been working very well for me as one of my primary fermenters. Easy to clean and portable. Thought I'd be worried about the handles but they are well made and durable.

Jeff not sure if the product pictured matches the description. (thinking for 26 gals this fermenter should be shaped more like a drum). Speidel fermenters are good but if the associated picture is the shape I'd say no to primary fermemtation. Cleaning it would be a bear.

That largely depends on what features you're looking for in a Primary fermentation vessel. You could primary ferment in a bowl on your counter. These have a good sized airlock and a spigot that will drain above the lees. A more conical vessel is more ideal for primary in general.

Yes we use them for primary fermentation. They work great.

Jeff I've used it successfully for both fermentation and aging. It light weight tough easy to clean and sterilize. For the money it's a good deal

Jeff I probably wouldn't use this for primary fermentation. It is somewhat difficult to clean and may retain off-odors. Best to use glass or stainless steel for that. I did store a cuvee for a sparkling wine in it this winter; it was excellent for that purpose.

YES! I use this for 20 gallon partial mash batches with a single stage fermentation. After one week I add dry hops for another week and keg at the 2 week mark. It is extremely easy to clean and sanitize and since (for me) it replaces 4 bucket fermenters and 4 carboys and 8 airlocks it has greatly reduced my workload and decluttered my brewing space. I put it on a cart so I can roll it inside or out depending on weather or brewing needs. I don't know how I got along without it.

Yes. I bought it as both a primary fermenter and a storage tank as my needs dictate. The lid has an O-ring seal and it has an airlock. When using as a storage vessel the airlock is replaced with a sealed cap.

Out of necessity I have used them for primary fermentation. Everything went very well and I was pleased with the wine.