Re: can you save a over heated/burnt striping run?
- Hmm, I've fixed some scorched whiskey mashes with the procedure I
mentioned and it does indeed work. As I recall it there was some
really nasty "burnt" smelling stuff coming out at the beginning. It
could be that I cut those furfurals off as tails or it could be that
when they mix with all those alcohols the mixture has low boiling
--- In firstname.lastname@example.org, "Harry" <gnikomson2000@...>
> --- In email@example.com, "abbababbaccc"
> <abbababbaccc@> wrote:
> > You can save most burnt mashes by doing a SLOW redistillation
> > GOOD reflux still. Phenols tend to come out at the beginning so
> > can cut them off.during
> > Cheers, Riku
> Phenols are the chemical compounds acquired by malt from peat
> the kilning process. They are responsible for the peaty flavour ofscorching
> Islay whiskies in particular.
> Conversely, burnt mashes produce pyrolytic compounds (pyrolysis:
> Extreme heat without air).
> Furfural, which is mostly derived from scorching the bran of the
> grain, or other solids in the wash, is the most common (and nasty)
> result of a scorched wash. In industry, it is produced by
> corncobs, oats, bran or sawdust in an airless reactor.remove
> Furfural is one of the most difficult and costly compounds to
> from spirit. It has a boiling point of 161°C. Under normalmilligrams
> maturation conditions of whisky, it only makes up 1 to 1.5
> per litre. But in a burnt mash, it could be more like 1000 timesat
> that amount. Carbon filtration has very limited success.
> If it were me, I'd put it aside as feints and add it back a little
> a time to the next 10 or so washes I distil. Or just toss it and
> chalk it up to experience.
> regards Harry