If you need no more than 24 oz boiling water. And know how to use a wind screen effectively.

Esbit is almost always lighter.

Solo I almost always take esbit. Have for four years.

When hiking with others and sharing a stove. I take bushbuddy or msr reactor. Still take one or two esbit tabs just in case though.

in really large groups we will usually pack a simmerlite with the reactor as the two stoves compliment each other really well.
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