Wagner,
A standard Kitchen Aid will handle up to a third of a gallon, but don't push it too hard. Use the wisk to speed it along. I have used it extensively. Now I have my hands on a big commercial job and I can do a gallon at a time. Still would like a gear machine, and thought about building one. Good luck and keep us posted.
Marc
Central Ohio
Leader WSE 2x6
Old metal corn crib converted to "The Shack"
Smoky Lake 6 gallon water jacket canner
Daryl 5" filter press with air pump
Deer Run 125 RO
2023: 140 taps, buckets, 32 gallons
2019: 100 taps, buckets, 45 gallons
2018: 100 taps, buckets, 31 gallons
2017: 100 taps, buckets, 15 gallons
2015: 100 taps, buckets, 34 gallons
2014: 100 taps, buckets, 30 gallons
2013: 100 taps, buckets, 52 gallons