Specify what reaches the equipment
For fresh berries, record debris, damaged fruit and handling condition. For frozen material, record temperature, clumping and the agreed preparation before feeding. A frozen block is not interchangeable with freely metered berries.
Keep thaw liquid in the record
Identify drainage, collection and destination of released liquid. Weigh fruit, collected liquid and losses with time and temperature. Water additions and wash carryover should remain separate from fruit-derived liquid.
Compare extraction on the actual feed basis
Use the same desired product and sampling method while recording different preparation histories. Do not apply a fresh-fruit capacity or fixed yield to frozen material without a representative trial.