Did a session with the Aroxa kit at the weekend- some feedback:
The flavours are a lot subtler than the Siebel kit. Not a bad thing but I think if I was introducing people to off-flavours for the first time I think the Siebel kit would be better. Or reduce the amount of base beer that the capsules get mixed with.
The info cards that come with the Aroxa kit are excellent and even include a QR code that drives you to the tasting notes on their website. It also includes a graph of percentage of population that can perceive the flavour against intensity.
Using Coors Lite made the diacetyl and DMS tasting quite difficult- It just made nicer tasting Coors Lite.
Also note that the Aroxa kit is not an "off flavours" kit but a tasting kit as it contains off flavours, positive flavours and flavours that are appropriate to certain styles. The flavours are:
dimethyl sulphide: “DMS, like sweetcorn or tomato sauce”
ferrous sulphate: “Metallic, like ink or blood”
hop oil extract: “Hop oil, like hoppy ale”
hydrogen sulphide: “H2S, like boiled or rotten eggs”
isoamyl acetate: “Isoamyl acetate, like bananas or pear drops”
3-methyl-2-butene-1-thiol: “Lightstruck, like a skunk or freshly-brewed coffee”
trans-2-nonenal: “Papery, like cardboard or oxidized beer”
2,4,6-trichloroanisole: “Musty, like corked wine or a damp cellar”
4-vinyl guaiacol: “Phenolic, like cloves or wheat beer”