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Guide · food manufacturing
Industrial silicone food moulds: the buyer's guide.
What to specify, what to ask for and what to watch out for when you buy silicone moulds for a production line, not a kitchen.
Start here
What makes a mould “industrial”?
A retail silicone mould is designed to be bought, used and replaced. An industrial food mould is designed around a process: a depositor, an oven, a blast chiller, a wash cycle and an auditor. It has to fit your equipment to the millimetre, survive hundreds of cycles without changing shape, and arrive with documents that show the material is suitable for food contact.
That changes the questions you should ask. Cavity shape matters, but so do tray footprint, stiffness, the grade of silicone, how it is cleaned, and what happens when a tray is worn out and needs replacing with an identical one.
Material
Choosing a silicone grade.
Most food moulds are made from platinum-cure (addition-cure) silicone. It cures without by-products that need driving off, holds its dimensions well and is the usual choice for food-contact work. Tin-cure (condensation) silicones are cheaper and common in craft moulds, but they shrink slightly as they cure and are not normally used for food.
Within platinum grades, the choice comes down to three things:
- Hardness (Shore A). Softer grades flex out of deep or detailed cavities; firmer grades hold flat on a conveyor and keep thin walls straight. Many production trays sit in the middle of the range, and some combine a firmer frame with softer cavities.
- Temperature. Check the grade's rated range against your hottest and coldest step, from blast freezing to baking, and leave a margin.
- Colour and detectability. Many factories prefer a colour that contrasts with the product, so a torn fragment is easy to spot. If you need a metal-detectable or X-ray-detectable grade, tell us at the start, because it changes the material and the cost.
Our ruleWe confirm the exact grade, its hardness and its temperature limits in writing on every order, so the tray you re-order next year is the same as the one you approved.
Compliance
Food-contact paperwork, without the jargon.
In the UK, food-contact materials fall under the framework regulation (EC) No 1935/2004, as retained in UK law, and good manufacturing practice rules under (EC) No 2023/2006. Silicone has no specific UK or EU measure of its own, so suppliers usually show suitability by testing against recognised references, most often the German BfR Recommendation XV for silicones and the US FDA rule 21 CFR 177.2600 for rubber articles intended for repeated use.
In practice, a buyer or auditor will usually want:
- A declaration of compliance for the finished mould, naming the silicone grade.
- The material supplier's test reports (overall and specific migration) for that grade.
- The conditions of use the testing supports: food types, temperatures and contact times.
- Batch or lot traceability, so a tray can be tied back to the material it was made from.
Be careful with “food safe” claimsA base material certificate tells you about the silicone as supplied. Whether the finished mould suits your particular food, temperature and contact time is a separate question. We'll tell you which conditions the paperwork covers and where you need your own checks.
Diagram
Parts of a production cavity
Parts of a production cavity
Swipe to see the whole diagram
Equipment
Fitting your line comes first.
The most common reason an industrial mould fails is not the silicone. It is a tray that is a few millimetres too big for the depositor plate, a cavity pitch that does not match the nozzles, or a tray that sags on the conveyor. So we design from the equipment inwards:
| Check | Why it matters | What to send |
|---|---|---|
| Tray footprint | Must sit in your depositor plate, oven rack or chiller shelf with the clearance your line expects. | Plate or shelf drawing, or measured internal size |
| Cavity pitch | Cavity centres must line up with depositor nozzles, or product lands off-centre. | Nozzle count and centre-to-centre spacing |
| Location | Edges, corners or pins locate the tray so it sits in the same place every cycle. | Photo of the plate or guide rails |
| Stiffness | Trays carried on a conveyor or stacked in racks need to stay flat when full. | How the tray is moved and supported |
| Temperature | Hot deposits, baking or blast freezing affect grade choice and wall thickness. | Deposit temperature and the full cycle |
Design
Cavity design rules that save trouble later.
- Draft. Even flexible silicone releases better with a slight taper on deep cavities. It also reduces tearing at the rim over time.
- Radii. Sharp internal corners trap product and are harder to clean. A small radius usually looks the same on the finished product.
- Land width. The flat between cavities needs to be wide enough to stay strong and clean, but not so wide you waste tray area.
- Fill line. If the product must be dosed to a set weight, we can add a fill line or design the cavity volume to your target.
- Branding. Logos and lettering need enough depth and width to read on the product. We'll check them at the size they will actually be.
Care
Cleaning, wear and replacement.
Platinum silicone tolerates normal food-factory cleaning, but strong alkaline or chlorinated chemicals, abrasive pads and very hot washes all shorten its life. Ask your chemical supplier to confirm compatibility with silicone, and tell us your wash regime so we can choose a grade to suit.
Lifespan depends on the product, the temperature, how the trays are handled and how they are cleaned, so we won't promise a cycle count without knowing your process. What we can do is keep the master and the specification on file, so a worn tray can be replaced with an identical one rather than a near match.
Brief
What to send us for a quick, accurate answer.
The equipment
Depositor, plate, oven or shelf sizes, and the nozzle pitch if you deposit.
The process
Deposit and set temperatures, bake or freeze steps, and how trays are cleaned.
The paperwork
What your customer or auditor needs to see, so we quote the right documents.
The volume
How many trays now, how many cycles a day, and how you expect that to grow.
The timing
When you need samples and when the line needs the trays. We'll tell you honestly what is realistic.
Questions
What buyers ask us.
Are silicone moulds suitable for industrial food production?
Yes, when the grade, design and paperwork suit the process. Platinum-cure silicone is widely used for depositing, baking, setting and freezing. We confirm the conditions the material is tested for, and help you check the rest.
What documents come with a food mould?
Normally a declaration of compliance for the finished mould, the material supplier's test reports for the grade, and the conditions of use they cover. Tell us what your auditor needs and we'll confirm before you order.
Can you match our depositor?
Yes. Send the plate size and the nozzle count and pitch, and we'll design the cavity layout to line up with them. We usually recommend a proof cavity or single tray before a full set.
Can you replace worn trays with identical ones?
Yes. We keep the master and the specification on file so replacement trays match the approved original.
Do you make metal or polycarbonate moulds?
We make silicone moulds. If metal or polycarbonate is genuinely the better answer for your line, we'll say so and can help arrange it through our sourcing service.
Next step
Tell us about your line.
Send the product, the equipment and the process. We'll come back with honest questions and a design to approve.
Real people, a real workshop
You deal with the people who make it.
No call centre and no middlemen. When you contact TCI Culinary, you speak to the team who design, build and check your mould.
- A real Warwickshire workshopUnit 15, Waterloo Park, Bidford-on-Avon, Alcester B50 4JG.
- Real people on the phoneCall the team on 01789 224228, Monday to Friday.
- The same team on every jobDesign, production and aftercare come from the people you see here.
- BRCGS Grade AATechcraft Industries Culinary Ltd. See the certificate details.
Thomas LaneManaging Director
George PrestonDesign & Project Manager
Kelly BallingerHead of Partnerships
Jim AndertonProduction Manager
TheodoreEmployee Welfare