My local Save on Foods (Canadian grocery store chain, idk if it's in the US) recently stocked up with tons of brewing equipment, compared to other save on foods which just stock a couple kits.(Yay for me!!) Not a great variety on yeast only EC-1118 and Coopers Ale Yeast but EC-1118 is pretty versatile. But then I saw this 10 gallon food grade primary fermenter looks pretty nice, not too expensive if I recall correctly. But... there is no spot for an air lock... I'm pretty sure the lid doesn't make quite an airtight seal either. So my question is, is this an open fermenter, and if so is it safe to use for a large batch of mead? I don't really know a whole lot about open fermenters or open fermentation. If someone could provide some insight that would be great.