Selling at markets teaches you things no spreadsheet will. You learn what people ask, which flavor moves, what price makes somebody hesitate. That is real research and most brands with a national footprint would kill for it.
It also teaches you a business model that does not survive the jump to wholesale, and a lot of makers find that out the expensive way.
Your margin is about to get cut in half
At a market you keep the whole retail price. In wholesale you are selling at roughly half of it, sometimes less once a distributor is involved. If your product only works financially at direct to consumer pricing, wholesale will lose you money on every case, and volume will not fix it.
Run those numbers before you pitch anybody. Cost of goods, packaging, labels, freight, and a realistic allowance for damage. If the math does not work, the answer is usually a change in pack size, formulation, or process, not a change in ambition.
"Volume does not fix a margin that does not work. It multiplies it."
Consistency stops being a nice to have
At a market, a batch that came out a little different is a story. In wholesale it is a complaint. Customers who buy the same jar every week notice, and a store that gets complaints stops reordering without necessarily telling you why.
This is usually the moment people start thinking about a co packer, and it is worth thinking about early rather than in a panic after you land accounts you cannot fill.
You stop being there to sell it
This is the one that catches people. At a market you are the marketing. Your face, your explanation, your enthusiasm. On a shelf you are not there, and the package has to do all of it alone.
That is why the jump to wholesale usually forces a packaging conversation, and frequently a positioning one. The thing you say out loud at the market, the sentence that makes people buy, has to end up on the label somehow.
What carries over
Your market customers are proof. Real repeat buyers, real feedback, sometimes real numbers. Buyers care about that more than a slick presentation, because it is evidence rather than a promise.
Keep track of it. Units per market, repeat customers, the things people say. When you sit down with a buyer, that is your velocity story before you have velocity data, and it beats having nothing to say.