unless this is just leaves and not bark
really there is only one reason to do a kilo of bark
i can think off and thats commres
that sorta things is frowned apon here ..so just what is your motivation ?
besides ,,,,, the bigger you go the more exsponetially dangerious it becomes .
so this means smaller is much safer ... but big plus to smaller is much much more efficent
so a 50gram or 100gram batches will provide many many journys ,,,
unless your burning it and wasting
doing a killo is rediculess