We suggest fill the Curetubes 1/2 to 3/4 full. This allows proper air exchange when burping, prevents material falling out of the burp door when opened, and prevents products smashing.
-Depending on density of material in The CureTube
-Large Curetube- 5-10 lbs
-Small Curetube- 2-4 lbs
-5 gallon bucket- 1-1.5 lbs.