Mead Lover's Digest #0235 Tue 23 November 1993


Forum for Discussion of Mead Making and Consuming
Dick Dunn, Digest Coordinator



Re: Dolomite … (Jean-Marie Van Dyck)
Re: dolomite ("George R. Flentke")
Bog Myrtle (got some!) (
dolomite (
Re: what is dolomite (
Dolomite (alan parman)


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Subject: Re: Dolomite ...
From: Jean-Marie Van Dyck <>
Date: Tue, 23 Nov 1993 11:38:48 EST

>> > …"Viking Age" brewing used dolomite as a yeast nutrient…
>> Anybody have any insights on "dolomite"??

A little more about dolomite …

It is a MAGNESIUM RICH CALCAREOUS STONE (limestone) like that we can
find in the "dolomitic country" of yugoslavia …

Regards JMVD

Jean-Marie Van Dyck email : internet
snail mail : B.P. 102
B-5000 NAMUR (Belgium) School Med. – Physiol. Chem. dept

Subject: Re: dolomite
From: "George R. Flentke" <>
Date: Tue, 23 Nov 93 08:41:43 CST

Dolomite is calcium magnesium carbonate. You can get it as a mineral
supplement in most drug stores or health-food stores. I expect that is just
a mineral supplement for the yeast. The calcium may have the added benefit
of helping sediment the yeast (it is reputed to do this in beer). I have
never used dolomite in mead directly but I have supplemented stuck
fermentations with minerals and a nitrogen source to get them going again.
George R. Flentke
School of Pharmacy
University of Wisconsin-Madison

Subject: Bog Myrtle (got some!)
Date: Tue, 23 Nov 93 09:46:47 EST

I got a Canadian friend to order some Sweet Gale from Herboristes
Desjardins, in Montreal, and then bring it across the border by hand.
He got me 500gr, which is more than a lifetime supply. It appears to
be crushed leaves, and has an intriguing scent. It doesn't taste
bitter (chewing a bit of leaf, anyway).

Rajotte recommends 1gr/5gal in his "Santa Claus' Magic Potion".

I am willing to send a couple of grams to anyone who sends me a SASE,
at least until the supply gets low. Clearly, a single postage stamp
will do the trick! Mail to

Spencer Thomas
1418 Golden Ave
Ann Arbor, MI 48104



Subject: dolomite
Date: Tue, 23 Nov 93 09:14:13 -0800

Dolomite is composed of carbonates of calcium and magnesium. The content
of calcium and magnesium varies with the source. Possibly it served as
yeast nutrient or modified the acidity ?

Eric Urquhart (
Centre for Pest Management,
Dept. of Biological Sciences
Simon Fraser University,
Burnaby , B.C. Canada V5A 1S6

Subject: Re: what is dolomite
Date: Tue, 23 Nov 93 14:47:42 EST

> > …"Viking Age" brewing used dolomite as a yeast nutrient…
> Anybody have any insights on "dolomite"??

Webster's sez: "a mineral CaMg(CO3)2 consisting of a calcium magnesium
carbonate found in crystals and in extensive beds as a compact limestone."
Calcium carbonates are often used to alter the Ph of a brew. I presume this
would do that, as well as providing magnesium and calcium for the yeast.
You might try looking in Miller's homebrewing book for more information. He
has extensive information on lots of minerals and how they interact in water
to affect the Ph and the flavor of beer. Although Mead makers need not be
as fussy about Ph (perhaps), you might find some useful information there.

Mike Lindner

Subject:      Dolomite
From: alan parman <U30585%UICVM@UICVM.UIC.EDU>
Date: Tue, 23 Nov 93 17:50:18 CST

Dolomite is a calcium magnesium carbonate (CaMg(CO3)2). It is a magnesium rich
limestone. This would add hardness, and probably raise and buffer the pH.
The magnesium is probably the only thing the yeast would get from it, though it
may significantly alter taste from its other properties.

End of Mead Lover's Digest #235