If thwe quanties are like andrews I'd do something like this
Code:
A ProMash Recipe Report
Mash Schedule
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Mash Name: Weizen
Total Grain kg: 4.50
Total Water Qts: 8.37 - Before Additional Infusions
Total Water L: 7.92 - Before Additional Infusions
Tun Thermal Mass: 0.00
Grain Temp: 27.17 C
Step Rest Start Stop Heat Infuse Infuse Infuse
Step Name Time Time Temp Temp Type Temp Amount Ratio
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43 5 30 42 42 Infuse 45 7.92 1.76
63 5 30 63 63 Infuse 99 5.73 3.03
72 5 30 72 72 Infuse 99 5.07 4.16
Total Water Qts: 19.78 - After Additional Infusions
Total Water L: 18.72 - After Additional Infusions
Total Mash Volume L: 21.72 - After Additional Infusions
This is worked out by adding water to mashtun, allowing it to preheat the tun and then once it cools slightly to the desired strike temp, add grain.
It starts quite thick, but keeps the 63 step at a 3:1 ratio.
If you dont start thick you'll end up with a stupidly high ratio.
Total Mash Volume L: 21.72 - After Additional Infusions Should fit into your tun