
Copyright © 20 3 Ruby Street Brewing, LLC
Brewing Instructions
Please note that these instructions are only intended to illustrate the basic use of this system and its
components. We highly recommend that you read one of the many available books on all grain brewing
procedure. Contact your brewing equipment supplier for recommendations. The following brewing scenario
is based on a single step infusion mash using highly modified 2-row malt. Note that one of the benefits of our
system having a direct fired mash tun is the ability to do more complex step and or decoction mashes. The
direct fired mash tun also allows the brewer to perform a 70°F mash-out if desired. While the directions
below are based on fly-sparging, batch sparging is also possible with this system and is becoming a popular
alternative for many brewers.
. Add cool clean water (strike water) to the mash tun at a rate of .25 quarts of water per pound of grain.
At this time, add any water treatments as necessary.
2. Heat the strike water in the mash tun to the required infusion temperature. There are many online
programs and even cell phone apps to help you calculate the correct strike water temperature. Generally
the strike water temp range is around 65°– 69°F
3. Once the strike water has reached the target temperature, add the entire grain bill to the kettle all at once.
Immediately stir until all grain is completely submerged and saturated. Using the kettle mounted
thermometer, check the temperature of the mash. The temperature should be around 49°– 54°F. Stir
the mash until the temperature reading stabilizes. Place a lid on the mash tun and leave undisturbed for
60 – 90 minutes.
4. While the mash is resting add cool clean water (sparge water) to the hot liquor tank at a volume of 2
gallons above your target runoff amount. Example: A 30 gallon batch requires an approximate 34 gallon
run-off to account for losses during boiling. Therefore, you would start with about 36 gallons of sparge
water. Generally this will leave you with enough left over hot water to use later for cleaning. Start
heating the sparge water immediately after mashing in. Heat the sparge water to 70°F. You will
occasionally need to reheat the sparge water kettle so the you maintain 70 °water throughout the
brewing process.
5. When the mash conversion rest is complete, remove the lid from the mash tun. Attach the short 2’ length
of 3/8” ID silicone tubing to the barbed inlet fitting inside of the mash tun. Place the remaining tubing on
top of the grain mash with the cork supporting the open end of the tubing.
6. Connect the 3’ length of tubing to the valve on the hot liquor tank and to inlet side of the left hand pump
(refer to the tri-clamp fitting assembly illustration on the overview page of this manual, page 5).
7. Connect one 4’ length of tubing from the outflow valve on the left hand pump .
8. While holding the open end of the 4’ outflow tubing above the level of the Hot Liquor Tank, open the ball
valve on the pump completely followed by opening the ball valve on the Hot Liquor Tank completely. This
should allow the pump head to flood with water and at this point you should see liquid flow through the
pump and into the beginning of the outflow hose. Do not start the pump. Once you have confirmed that
the pump head is filled with liquid, close the outflow valve on the pump. CAUTION! Never operate the
pump dry as this will damage the pump.
9. Once the pump has been primed, connect the open end of the 4’ tubing to the inlet fitting at the top of
the Mash Tun.
0