Last September I did a 400km trip in ~23 hours. For food I went through 20 cliff bars. My stomach was pretty upset with all of those.
This year I wanna try 500km.
I am looking for an alternative food source, something consumable in large quantities and friendly on the stomach. Yet fits into my back pack. (Although stopping 1-2 at a grocery store would be Ok also).
I was considering making energy drinks and bring 3L container with me in my backpack with straw that goes to mouth. But, erm, can you get by on liquid drinks alone?
Is there any other food that is friendly on the stomach, consumable while cycling and has a lot of energy to sustain ongoing high performance?
(I was going through ~700 calories an hour, it was about 12,000 calories total).