Karen's usually do that to find someone or something to complain about. I'm surprised she didn't ask to speak to your manager.Who does that??
i get the conversation and the business aspect of it all, but who frieakin goes to a farmers market and goes home and weighs their handcrafted soap purchase?? LOL
But in all seriousness you can do average weight of a random sampling per code. You take 10 to 20 bars, weigh them and use the average but it must be indicated on your label it's an average weight since it's a hand cut product and not mass manufactured. If it's cp then wait a 2 weeks, take your random sample, do some math and use that for your label weight. Just make sure to change your weight wording to average net before water loss. It's like how McDonald's says the weight of a beefb patty is 4oz PRIOR to cooking. It's perfectly legal you just have to indicate how the weight is determined.