Two figures on a cocoa powder Certificate of Analysis decide almost everything about how the powder behaves in your product: the fat content and the pH. Fat tells you how rich the powder is and how much of your recipe's total fat it is quietly supplying. pH tells you how acidic it is, which sets the leavening reaction, the colour and the sharpness of the flavour.
Everything else on the sheet matters for safety and consistency. These two matter for the bake. This is what each number actually means and what to do with it.
Why the front of the bag is not enough
"Natural" and "non-alkalised" are process claims. They tell you no alkali was added at any point, which is genuinely useful, but they do not tell you the fat content and they do not tell you the exact pH. Both vary with the origin, the bean and how hard the cake was pressed before milling.
That is the gap the Certificate of Analysis fills. A COA is a batch-level lab result: what this specific delivery measured, not what the category typically does. If you are switching supplier, qualifying a new powder, or trying to work out why a formula that ran fine last year has drifted, these are the first two lines to look at.
Fat content: what it is and what it changes
Cocoa powder is what is left after cocoa butter has been hydraulically pressed out of cocoa mass. The press never gets all of it, and what stays behind is the residual fat you see on the COA.
Our natural cocoa powder runs 10 to 12 percent, which is standard for a natural powder. At the other end of the market, powders pressed less hard are sold as high-fat or breakfast cocoa and commonly sit around 22 percent and above. Those are two genuinely different ingredients wearing the same two words on the front.
What a lower fat figure does for you
Less fat means more cocoa solids per gram. The flavour reads more concentrated and more intensely cocoa, which is why lower-fat natural powders are the standard choice for brownies, chocolate cakes, drinking chocolate and any application where you want the cocoa note to carry.
It also means the powder contributes less fat to the total formula, which is a good thing when you are controlling richness yourself, and a problem if you did not notice.
What a higher fat figure does
More fat means a rounder, softer mouthfeel, glossier ganache and better dispersion in liquid. It also means the powder is doing part of the job your butter or cream was doing.
The switching trap
This is the failure mode we see most often. A formula built around a 22 percent powder, run instead with a 10 to 12 percent powder at the same weight, has lost real fat. The bake comes out drier and tighter, and the first suspects are usually the oven or the flour. It was the cocoa.
The fix is arithmetic, not guesswork. Work out the fat the old powder was contributing, work out what the new one contributes, and add the difference back as cocoa butter or as whatever fat the formula already uses. On a recipe carrying 100 grams of cocoa powder, moving from 22 percent to 11 percent fat removes roughly 11 grams of fat from the batter. That is not a rounding error in a cake.
pH: what it is and what it changes
pH is the acidity measure, run on a solution of the powder rather than the dry material, and stated as a number between roughly 5 and 8 across the cocoa category.
Ours sits at 5.0 to 5.5. That is what an untreated cocoa bean gives you. Alkalised, or Dutch-processed, powders have been treated with an alkali specifically to raise that number, which is where the darker colour and mellower flavour come from.
pH sets the leavening
This is the one that ruins bakes. Bicarbonate of soda is alkaline and needs acid to react and produce lift. A powder at pH 5.0 to 5.5 supplies that acid generously. A powder up near neutral or above supplies almost none, and bicarb sitting unreacted in a batter tastes soapy and slightly metallic.
If your COA pH has moved between deliveries, or you have changed powder, the leavening is the first thing to check. The full adjustment, in both directions, is in the leavening maths for swapping natural and Dutched cocoa.
pH sets the colour
Acid keeps cocoa lighter and redder. Alkali darkens it. That is the entire mechanism behind the deep near-black colour of heavily Dutched powders, and it is why a natural powder gives you a medium brown crumb rather than a black one. If you need a dark finished product from natural powder, you get it from the recipe and the bake, not from the powder.
pH sets the flavour edge
Lower pH reads sharper, fruitier and more acidic. Higher pH reads rounder and more mellow, and it softens the origin character along with the edge. Ghana cocoa carries a distinctly full-bodied, fruit-forward profile at natural pH, and alkalising is precisely what smooths that away.
The two numbers together
Read them as a pair, because they answer different questions and they interact.
- Low fat, low pH. A concentrated, sharp, lighter-coloured powder that pairs with bicarbonate of soda. This is where our powder sits and it is the classic baking specification.
- Low fat, high pH. Dark, mellow and intense, needs baking powder or another acid source in the formula.
- High fat, low pH. Rich and sharp. Uncommon, and worth confirming with the supplier rather than assuming.
- High fat, high pH. The typical professional bakery Dutched powder. Rich, dark and mellow, and it is contributing meaningful fat to your recipe.
Move between any two of those boxes and you have to change something in the formula. Move within a box and you usually do not.
What to do with the figures in practice
When you qualify a new powder. Record the fat and pH from the COA before you bake anything. Compare them to the powder you are replacing, not to the category. If either has moved, adjust before the first batch rather than after the third.
When a delivery arrives. Check the new batch COA against the last one. You are not looking for a pass or fail, you are looking for drift. A powder that ran 11 percent fat and now reads 10 percent is fine. A powder that has moved from 11 percent to 15 percent is a different ingredient and your ganache will tell you so.
When something goes wrong. Pull the COA for the batch that failed and the batch before it and compare the two numbers first. It is faster than re-testing the recipe and it is usually the answer.
When you are comparing suppliers. Ask both for a batch COA and line up the same two figures. A supplier who can only offer a generic specification sheet with "typical values" is telling you what the product is supposed to be, not what arrived. Those are different documents, and the difference is covered in why a batch COA settles it.
Batch variance is a cost most buyers never price
Blended cocoa moving through a broker chain rotates between sources, and fat and pH move with it. That variance does not announce itself. It shows up as a bake that needs adjusting, a ganache that sets differently, a colour that no longer matches last month's, and time spent working out why.
Single-origin material from one facility does not remove variance, because agriculture is not that tidy, but it narrows it and it makes it visible. The figures are on the certificate either way; the question is whether you are given one.
What our COA covers
Every batch of our natural cocoa powder ships with a Certificate of Analysis covering fat content, pH, fineness, moisture and a full microbiological panel. The powder is single-origin Ghana, sun-dried, roasted, pressed and milled at our partner facility in Tema with no alkalising agent at any stage, and it is food-grade and cosmetic-grade.
The facility is certified to ISO 22000:2018 for food safety and ISO 9001:2015 for quality management. Those certificates belong to the facility that produces the powder rather than to CocoaFoundry as a company, and we describe them that way on purpose.
Packs run from 100g to 20kg online on the product page, and trade volumes from 25kg upward are quoted.
FAQ
What fat content should natural cocoa powder be?
Natural cocoa powder typically runs 10 to 12 percent residual fat. Powders pressed less hard are sold as high-fat or breakfast cocoa and commonly sit around 22 percent and above. Both are legitimate; they are simply different ingredients, and the COA is where you find out which you have.
What is the pH of natural cocoa powder?
Natural, non-alkalised cocoa powder is acidic and generally sits around pH 5.0 to 5.5. Dutch-processed powder has been treated with an alkali to raise that figure, which is what darkens the colour and mellows the flavour.
Why does cocoa powder pH matter in baking?
Because bicarbonate of soda needs acid to react and lift. Acidic natural powder supplies it. A neutral or alkaline powder does not, so a recipe leavened with bicarbonate of soda will under-rise and can taste soapy.
Is fat content or pH more important?
They answer different questions. pH decides your leavening, colour and flavour edge. Fat decides richness, mouthfeel and how much fat the powder is contributing to the formula. Check both when you switch powders.
What else is on a cocoa powder COA?
Typically fineness or particle size, moisture, ash, and a microbiological panel covering total plate count, yeasts and moulds, coliforms, E. coli, enterobacteriaceae and salmonella, alongside batch and date identifiers.
Read the two numbers before you bake
If you are qualifying a powder this month, get the batch COA first and read the fat content and the pH before anything goes in a bowl. Ten seconds of reading saves a test bake.
Email team@cocoafoundry.co.uk for a sample of our natural cocoa powder with its batch COA, or check the published spec block on the natural cocoa powder page and run it against your current supplier's last three deliveries. No minimum on a first order.