Coffee stain
Use only on nylon and olefin carpets.  Do not use
on cottons, wools or other fabrics unless you are
experienced with this procedure on those fabrics.
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.     Coffee stains that do not rinse out of carpet with normal cleaning
have often been set by amateur attempts.  Tannin removers and
other acid treatments are not always effective.  Many of these
stubborn coffee stains are still reversible and can be removed by the
professional spotter using this procedure.


.     Be sure that you have conducted all other spotting procedures
that may be desired before proceeding.  This procedure will not
usually affect original color of olefin and nylon carpets when
directions are followed.  However the danger of color reaction or loss
DOES exist with most other fibers, especially wool.  Also remember
that there is often hidden discoloration that becomes visible when
the brown spot is removed.  The carpet owner should be advised
that undesired results  are always possible with advanced spotting
procedures and they should agree that it is their risk, not the spotting
technician’s.  It is that a waiver or note on the work order be signed
by the customer as covered elsewhere on this website.  Normal
professional testing procedures apply.


.     using a powerful steam extractor.  There were probably other
spotting chemicals used before your arrival and they may still be in
the carpet.  Remember, everyone thinks they can remove a coffee
spot with some garbage under their counter.  This crap doesn’t
always flush out easily.  These residues must be flushed out prior to
corrective action or your attempts may fail.  A good doctor cleans the
wound thoroughly before applying his/her medicine and that
concept holds for the professional spotting technician also.  Whether
you are dealing with a spot or a whole room, the best results can
usually be attained by using a rinsing agent such as Chemeisters®
Rinse Master™ first as a prespray to insure good residue removal.  

ALTERNATE STEP #2 – HUE RENEW™  (oxidizing agent*)  The
product of choice here is sodium metabisulfite but Hue Renew with
it's enhanced sodium percarbonate will do just fine most of the time.

.     Hue Renew is the strongest form of “powdered peroxide” that it is
lawful to ship in the U.S.   Apply to the spot or area until the full length
of the carpet fiber is of medium dampness and allow it to dwell until
the brown spot is gone.  You may wish to play safe and rinse-extract
to neutralize but leaving it on unrinsed is more likely to remove the
fugitive spot completely.  Hue Renew is a strong oxidizer that is often
effective on coffee stains or those gray or dull conditions that are
sometimes found on carpets where cleaning does not help.  Hue
Renew will usually remove coffee stains and brighten colors and is
not likely to pull original color on olefin or nylon.  However if the dyes
have been loosened or damaged by the coffee or previous spotting
attempts then it could have an effect on them so be careful.  


.     Sodium Bisulfite is a generic chemical, we add nothing.  It is the
strongest "bleaching" agent that is recommended for carpet
spotting.  Apply to the spot or area until the full length of the carpet
fiber is of medium wetness and allow it to dwell until the brown spot
is nearly gone.   If left unrinsed, it is often more effective and seldom
causes a problem but it can affect the dyes on some nylons and it is
more likely to react with residues left in the spot so rinsing is a safer
procedure.  Also, the oxidizing process will often continue for a time
after being rinsed.  For that reason it is recommended that rinsing
take place when the spot is nearly gone as stated above.  Too strong
of a mixture or too much dwell time may result in undesired color
loss.   Bisulfite is used to “bleach” or remove discolorations caused
by urine, coffee, food dyes, etc. from many carpets, fabrics and
surfaces.  Bisulfite can and does pull original colors on damaged
nylons and is a highly reactive material.  Reactive means that it can
react with residues left in the spot so flush the spot thoroughly.  Use
of a rinse agent such as Chemeisters Rinse Master is recommended.

DO NOT MIX sodium metabisulfite WITH OTHER CHEMICALS or
cleaning products and use proper testing procedures.  In the hands
of an experienced technician, this chemical is a magic wand.