Don't waste your breath. Every single time people are told that the ridiculous comment is actually a legitimate off-flavor observation, they respond by assuring everyone that their beer was absolutely flawless.
Ohh, its most definitely flawless... Quite possibly the greatest beer in the whole world. Im seriously considering opening a brewery cause its that good, does anyone want to invest in me?
On a serious note, she does eat everything with lime juice on it so I suspected her taste buds could be off. Nevertheless I will continue to 'investigate'