|
Don't
want to measure, mix, dilute?

MEDIA
IN
2
DAYS

Sterile,
prepared
microbiological media in 50-ml tubes.
Complete
array of effective and user-friendly agars.
Just
liquefy and pour into the 5 mini-plates provided.
The
easiest way to fast and reliable in-house testing.
2-day
shipping is free!
LMDA (brewing
bacteria) - $5 per
tube
The best bacteria test around. This agar test may be used aerobically or anaerobically
to determine whether or not brewing bacteria are present, and allows for quick and easy genus identification. It supports the growth of the
most common types of brewing bacteria, but suppresses the growth of most brewing and wild yeasts. If
individual colonies arise, note the color, texture and size of each type. Also, note whether any colonies have changed the
color or cloudiness of the media immediately surrounding them. After running a gram-stain,
compare your observations against the characteristics listed for each genus, and
identification is complete. Click here
for an identification key. Keep refrigerated; shelf life is indefinite.
LCSM (rare wild
yeasts) -
$5 per tube
This aerobic agar test reveals the presence of non-Saccharomyces
(of a genus other than that of brewing yeast)
wild yeast, but does not allow for further identification. If distinct colonies appear ("mountains" as
opposed to "mole-hills"), wild
yeast is present. Click here
for help interpreting results. Wild yeasts are not usually tolerated at any level, because they
are as unaffected by acid- washing, low pH or alcohol content as brewing
yeast, and so their numbers may increase with every pitch. Keep refrigerated; shelf life is 1 week.
LWYM (common
wild yeasts) - $5 per
tube
This aerobic agar test reveals the presence of Saccharomyces (of the
same genus as that of brewing yeast)
wild yeast. If distinct colonies appear ("mountains" as
opposed to "mole-hills"), wild
yeast is present. Click here
for help interpreting results. Wild yeasts
are not usually tolerated at any level, because they are as unaffected by acid-washing,
low pH or alcohol content as
brewing yeast, and so their numbers may increase with every pitch. Keep refrigerated; shelf life is 1 week.
RDMA (petite mutants)
-
$5 per tube
A BSI-exclusive! This aerobic agar test reveals the presence of respiratory-deficient mutants without the need for
messy overlays. Normal yeast colonies will appear pink or red; mutant colonies will appear
white. According to
George Fix, a mutant population of about 1% is considered normal and acceptable, but
flavor is affected when they
constitute more than 5% of the total. Keep refrigerated; shelf life is indefinite
until media turns pink.
WORT
(brewing yeast) - $5 per tube
This aerobic nutrient agar is designed for the growth, storage and
conditioning of yeast cultures. Because it is
made from wort, it presents yeast with a nutrient profile similar to what the yeast will
encounter when pitched,
and so may be said to "condition" the yeast in a way that YPD and other nutrient
agars cannot. Yields are
comparable to commercial nutrient agars. Keep
refrigerated; shelf life is indefinite.
|