47
THE SPONGE
Use a non-scratch sponge to prevent scratching the stainless
steel. The sponge provided is non-scratch. If you use a sponge
that scratches the stainless steel, the scratches can be a hiding
place for undesirable microbes that don’t get in contact with the
sanitising agent which then increases the risk of infection.
THE DRAFT TAP FOAM MECHANISM
The draft tap has a beer-foam mechanism. When pushed
towards the back of the brewery, it will create foam at the end
of a pour into a glass, to give a nice head. Therefore when
we clean, we must both pull and push the tap when allowing
detergent and sanitising agent to flow out the tap, so that the
tap gets a good clean.
THE SEDIMENT BOTTLE
At the end of the brewing process, the sediment bottle should
be rinsed and put back on the brewery as a safety measure,
in case children open the vessel valve. However just before
the next brewing day, when the beverage is almost gone, as an
alternative to the clean and sanitisation that occurs in Stage 1,
you may instead wash the sediment bottle in a dishwasher. In
addition, an alternative to sanitise is to stand the sediment
bottle in 80°C/176°F hot water for 2 minutes. The heat will
destroy most bacteria even if the bottle isn't cleaned well.
The bottle can handle most cleaning agents as well as hot
temperatures up to 100°C/212°F.
YOUR OWN TECHNIQUES
You may find your own techniques that are easier for you than
our method. You are the brewer and the owner of the brewery, so
you may find methods that suit you better.
You may prefer to clean less. It is possible to just give the
brewery a decent water scrub and water rinse and brew the next
batch without getting an infection. We know brewers who have
done this many times with their WilliamsWarn. However, the risk
of infection will likely increase over time if you never clean the
brewery with detergent and sanitizer.
Or alternatively you may feel we have not cleaned and sanitised
enough with our method and you’d like to do more or double the
concentrations of chemicals.
Either alternative is fine as long as the beverages you brew
taste good and have no off-flavours caused by an infection of
unwanted micro-organisms. At the end of the day, the brews you
produce will tell you if you are cleaning and sanitising enough.
EMERGENCY SANITISATION
In our first period of selling Personal Breweries, we have had
no reports of infection. However if for some reason you suspect
you have infections (e.g. sour beverage, major off-flavours) over
several brews, the best solution would be to give a good clean
with detergent and then a sanitisation with hot water.
Heat is very effective as killing undesirable micro-organisms as
it penetrates everywhere.
In this case we would recommend heating 7 Litres (1.8 US
Gallons) of water up to 80°C/176°F in a pot and then add this
carefully to the cone of the brewery (vessel valve closed) and
then close the lid. Wait 5 minutes for the heat to heat-up the
vessel and then add 0.3 bar/5psi of pressure to the vessel and
push 250ml of this water out the draft tap and filling line. The
water will be somewhere above 70°C/158°F at this stage and
this is enough heat to kill most beverage spoiling microbes in
a few seconds. Allow it to sit for 20 minutes to further heat up
the vessel and under the lid. Then release the VPRV after 20
minutes (as there may be a partial vacuum inside, due to the
water cooling down) and remove the lid and dump the water out
of the vessel and lines.
This should have killed any undesirables.
SAFETY NOTE:
Obviously moving a pot of 7 Litres (1.8 US
Gallons) of water at 80°C/176°F requires precautions to ensure
safety requirements are met. Ensure no children are nearby and
take total care moving and pouring the water.
CLEANING THE OUTSIDE OF THE BREWERY
The best way to clean the outside of the brewery is to use
stainless steel wipes used on stainless steel refrigerators and
handles. In New Zealand and Australia there is a product called
Kleenex Viva Stainless Steel Wipes. In the USA there is Weiman
Stainless Steel Wipes. Find a similar brand and you will find it
easy to remove hand marks and keep the brewery looking shiny.
RINSING THE VPRV LINE
If you have for some reason experienced beer foam coming out
the VPRV, this line will need a clean. Remove pressure slowly
from the vessel if required and remove the lid. Unwind the
VPRV fully and remove the parts. Using the rinse bottle, spray
water down the VPRV line so that it runs out into the fermenter
through the hole at the top. Rinse this hole with the rinse bottle
as well. Then open the tower door and put a paper towel under
the pressure relief valve on the back wall and pull the ring to
open the valve and allow water to run out. The VPRV line will
now be clear of residue.
CLEANING THE DRAFT TAP
If the draft tap looks dirty or becomes stuck or hard to
more forwards and backwards, it will need to be dismantled
and cleaned. Please see the instructions and photos in
Appendix Nine: Dispense The Beverage.
Содержание BrewMaster
Страница 3: ...PART ONE YOUR PERSONAL BREWERY...
Страница 14: ...PART TWO MAKING YOUR BEVERAGE WITH THE STANDARD BREWING METHOD...
Страница 39: ...PART THREE MAKING BEVERAGES WITH THE ADVANCED METHOD...
Страница 45: ...PART FOUR APPENDICES...
Страница 78: ...TROUBLE SHOOTING THE WILLIAMSWARN PERSONAL BREWERY...