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yield
hi,
any thoughts on batch yielding? How close to batch weight total and yield total should I be or does it depend on what I am making?
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6 Replies
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I’d be concerned if I was off by more than a percent or two. I’d be deeply concerned at being off by 10% or more.
Which brings up an interesting question. How many formulators compensate for evaporative water loss by adding more water? -
For creams, I generally am at 95%.
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For a hair pomade with tons of waxes one time the batch was about 15% short. We compensated by adding maybe 5% of water. In the lab and we were able to add back all of the 15% with some heating but as always, production is a different story.
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In my formulating work I did both (add missing water weight or not). It never seemed to matter.
In production, we never added back missing water weight. Of course, the compounders always managed to weigh out exactly the right amount of everything…go figure. -
It’s funny how that always happens…
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adding water:In formulating -yes I add the missing water (at least in the end prototype recipe)
In production there shouldn’t be any water loss since it will give to much batch to batch variations except if you have the whole vessel on a balance.
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