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Compliance & HACCP
Mix a 1:N sanitizing solution accurately. Enter the solution volume and the dilution ratio to get the ml of concentrate and water needed, the dose per container and the final concentration. Always follow the product data sheet.
Volume (ml) = Volume (L) x 1000 Concentrate (ml) = Volume (ml) / (N + 1) Water (ml) = Volume (ml) - Concentrate (ml) Concentration % = Concentrate (ml) / Volume (ml) x 100
These are indicative values; always follow the product technical data sheet and the local regulations that apply to your business.
A 1:N ratio means 1 part of concentrated product to N parts of water. For a 1:100 dilution you use 1 part concentrate for every 100 parts water, so the concentrate is 1 part out of 101 total parts. This calculator turns that ratio into actual millilitres for the volume you want to make, so you do not have to estimate by eye. The single most important rule still applies: always follow the dosage on the product's technical data sheet.
First convert your target volume to millilitres: volume in ml = volume in litres x 1000. The concentrate needed is volume in ml divided by (N + 1), because the total is N+1 parts. The water needed is the total volume minus the concentrate. The final concentration is concentrate divided by total volume, times 100. These are indicative values; the correct ratio for your product is the one printed on its data sheet.
Because in a 1:N ratio the total number of parts is N parts of water plus 1 part of concentrate, which is N+1. Dividing by N+1 gives the true fraction of concentrate in the finished solution. Dividing by N would slightly overstate the concentrate and is a common mistake. For large N the difference is small, but for low ratios it matters.
The maths applies to any 1:N dilution, but the correct ratio, contact time and safety precautions differ by product and surface. Sanitizers, detergents and descalers are not interchangeable, and some require rinsing before food contact. Always read and follow the manufacturer's technical data sheet and safety instructions, and check the local regulations that apply to your business.
Not necessarily. Over-dosing wastes product, can leave residues, may damage surfaces and is not safer; under-dosing can fail to sanitise. The manufacturer sets the ratio and contact time to be effective at the stated concentration. Use the calculator to hit that target accurately rather than guessing, and treat its output as indicative against the data sheet.