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Salad Dressing Co-Packer: Standards, Acidity and Quotes

Finding a salad dressing co-packer: shelf-stable or refrigerated, when garlic makes it an acidified food, the mayonnaise standards, three quotes.

By Koa Sterling. Product specialist at TaroStack and small business owner. Yes, I am a real human, and I actually sit in front of a computer and write these articles. Reviewed October 17, 2026 · 6 min read

A salad dressing co-packer mixes, emulsifies and bottles your dressing, hot-filled or cold-filled, shelf-stable or refrigerated. The questions that matter start with what kind of dressing it is. A vinaigrette that's mostly vinegar and oil can be an acid food, but add enough garlic, onion, herbs or vegetables and it can become an acidified food, with the FCE registration, process filing and pH records those bring, so a process authority should review the recipe before the co-packer quotes. Creamy dressings with buttermilk or cheese often stay refrigerated. And two names are federal standards of identity: a product called mayonnaise has at least 65% vegetable oil, and one called salad dressing, the spoonable kind, at least 30% oil with egg yolk; your vinaigrette is named for what it is. In the example below, a Keene, New Hampshire dressing maker planning for about 2,000 bottles a month pays $3.34 a bottle making it itself, $2.95 with a small dressing co-packer, and $2.26 with a larger plant whose minimum is six months of bottles. Below is what dressing co-packers do, the acidity and naming questions, three quotes, and a free calculator.

The short version

  • Dressing co-packers mix, emulsify and bottle, hot-fill or cold-fill.
  • Garlic, onion, herbs or vegetables can make a vinaigrette an acidified food.
  • Have a process authority review the recipe first.
  • Creamy dressings with dairy are often refrigerated.
  • "Mayonnaise" means at least 65% oil; "salad dressing" at least 30% with egg yolk.
  • Emulsion stability and separation over shelf life go on the spec.
  • TaroStack keeps track of your bottles at the co-packer, by lot, as a site of its own. More below.

What dressing co-packers do

They weigh and mix ingredients, emulsify with high-shear mixers, fill hot or cold, cap, label and case. Hot-fill lines suit shelf-stable dressings; cold-fill with refrigeration suits creamy ones. Most buy the oils and vinegars; a specialty vinegar or herb you may supply. What a co-packer is in general is in what is a co-packer, and sauces in sauce co-packer.

Acidity and names

Question What to settle
Acid or acidified Whether low-acid ingredients like garlic, onion or herbs make it acidified; if so, registration and a filing for each product and bottle size (21 CFR 108.25)
Process authority A review of the recipe and pH before the first run
Mayonnaise At least 65% vegetable oil (21 CFR 169.140)
Salad dressing At least 30% vegetable oil and egg yolk, the spoonable kind (169.150)
Refrigerated or not Dairy-based dressings kept cold, with a use-by date
Separation How the emulsion holds over the shelf life

The acidified food rules are in FCE registration, and the process authority in process authority letter. This is general information, not legal advice.

Three quotes compared

Monadnock Dressing Co., the made-up dressing maker in Keene, New Hampshire, I use in these examples, is planning for about 2,000 twelve-ounce bottles of shelf-stable vinaigrette a month after a grocery chain's offer:

Make it yourself Small dressing co-packer Larger dressing plant
Run you'd order 400 2,500 12,000
Minimum run none 1,500 12,000
Good bottles, after the loss 392 2,450 11,880
Kitchen rent or setup $150 $350 $700
Fee, or your own labor, a bottle $0.80 $0.65 $0.30
Oil, vinegar and seasonings $1.25 $1.20 $1.05
Bottle, cap and label $0.85 $0.80 $0.68
Freight a run $0 $250 $800
Run cost $1,310 $7,225 $25,860
Months to sell the run 0.2 1.2 5.9
Storage while it sells $0 $0 $988
Cost a good bottle $3.34 $2.95 $2.26

The small co-packer saves 39 cents a bottle, about $780 a month at 2,000 bottles, and the kitchen days. The larger plant saves another 69 cents for $25,860 out and almost six months of vinaigrette; shelf-stable dressing keeps, so it's a cash question that waits until the chain's orders prove out. The creamy dressing stays a kitchen product, refrigerated. What the dressing business earns is in salad dressing business plan.

What to settle before the first run

  • The process authority's review, and the finished pH.
  • Hot-fill or cold-fill, and the shelf life.
  • Viscosity and emulsion stability.
  • Fill volume and declared net contents.
  • Allergens on the label, lot code and best-by date.

What a spec sheet holds is in product specification sheet.

Get the calculator

Download the salad dressing co-packer quote calculator. One column for each quote and one for making it yourself: type the run you'd order, the minimum, the loss, the setup, the fee or your labor, the ingredients, the bottle and label, freight and storage, and the run's cost, the months it takes to sell at your sales a month, the storage while it sells, the cost of each good bottle and the cash out before it sells fill in. It's an ordinary Excel file with no macros, and it works in Google Sheets, LibreOffice and Numbers.

Where this stops working

Vinaigrette at the co-packer, creamy dressing in your walk-in, restaurant gallons going out every week: a spreadsheet doesn't keep the shelf-stable and the refrigerated stock straight.

How TaroStack does it

TaroStack keeps track of your bottles at the co-packer, by lot, as a site of its own.

The co-packer as a site. The co-packer's premises can be a site, so the bottles and labels you send are a transfer, shown in transit until they arrive, and the finished cases there are counted as yours. More than one site is on Standard at $99 a month.

Runs as batches, with dates. Each run is a batch with a lot and its best-by date; the refrigerated creamy dressing made in your kitchen gets its own shorter date, and orders pick the earliest first.

Where it went. Each grocer's order records the lots it got, so one recall report shows every store a run reached.

The job Spreadsheet In TaroStack
Vinaigrette at the co-packer Ask them Stock at their site
Creamy dressing dates A list on the walk-in Lots with their dates
Which stores got a run Invoices One recall report

Sites, transfers, recipes, batches and lots are on Standard at $99 a month for more than one site. The first 30 days are free, with no credit card. If you'd like a hand setting up, ask, and we'll do it with you.

Questions people also ask

How much does a salad dressing co-packer cost?

In the example, $2.95 a twelve-ounce bottle at a small co-packer and $2.26 at a larger plant, including ingredients, the bottle and freight.

Is salad dressing an acidified food?

It can be: a dressing with enough garlic, onion, herbs or vegetables may be acidified; a process authority decides from the recipe and pH.

What makes a product mayonnaise?

Federal rules call for at least 65% vegetable oil, with egg yolk and an acidifying ingredient.

What is the minimum order for a dressing co-packer?

In the example, 1,500 bottles at a small co-packer and 12,000 at a larger plant.

Sources

  1. 21 CFR 169.150 and 169.140: salad dressing (at least 30% vegetable oil and egg yolk) and mayonnaise (at least 65% vegetable oil), the standardized names · read October 17, 2026
  2. 21 CFR 108.25: acidified foods; registration and a process filing for each food in each container size · read October 17, 2026

We use AI to help with the research for these articles. Every one is read, checked against its sources and edited by Koa before it's published. Spot a mistake? Tell us and we'll fix it and say so. How we write these.

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