coin/rust off flavor

[LordEoin]

I recently brought a stout (coopers kit, dark and wheat DME, dex, fuggles [15min, 5min, dry]) to a meet and it had a slight off taste like described here, "METALLIC off flavors are perceived as the taste of a rusty nail, or coin-like, tinny and blood-like".
The rest of the beers from this batch taste fine.

Anywhere I look suggests it would be from metal pots etc, but I used only plastic. However that page also blames bottle caps.

I had been using up old bottle caps at the time, so maybe this is it, but they all have plastic lining on the inside.

I'm drinking one now and there's no hint of metal/rust/coin off it at all. In fact it tastes great.
Can anyone shed some light on this for me?

[mr hoppy]

I'd imagine your kit was fresh.

Sometimes hop flavours can come across as metallic?

Incidentally, Saison Dupont is well known for it's metallic flavour and it's a great beer.

[LordEoin]

yeah, it might have just been a bit too young. cheers happy

[mr hoppy]

NP - one of the beers I brought was described as tasting like baked beans!

[RichC]

I get a slight metallic taste from Staropramen that doesnt appeal to me. Does a specific malt give this?

[mr hoppy]

I'd noticed that. I kind of assumed, without any basis (other than the other ingredients shouldn't) that it was the hop extract.