I hadn't seen much info about Esbit usage with the Caldera Keg and wanted to share my experience.
My setup for my JMT hike this summer was as follows..
Caldera Cone and Heine Can 2.63oz
Supplied Cup and Stuff Sack 1.57oz
Gram Cracker, plate, zip bag .42oz
REI Waterproof matches (25) .6oz
Mini Bic .5oz
Ziploc bag for Heine can to keep cup clean .25oz
total is 6oz
3pack esbit tabs 1.55oz
FBC ultralight cozy .8oz
I only used the can to boil water for my freezerbag meal and a hot drink using one tablet. For each meal in varied ambient and water temps I was able to bring 24oz of water to a boil and pour what I needed into my mealbag. This would leave some hot water in the can to which I would add a bit more cold water and place back over the flame. Letting the Esbit tab burn out would leave me with 12-14 oz of water quite hot enough for coffee in the morning or tea at night!
I was very impressed with the performance and brought too many tabs for the first half of the hike. A fuel weight of 8oz (16 tabs) for the last 8days put my total cooking setup under 16oz!

