E464 – Hydroxypropyl methyl cellulose
StabiliserDescription
Semi-synthetic polymer derived from cellulose; white to slightly off-white powder
Notes
Hydroxypropyl methyl cellulose, often shortened to HPMC, is made by taking natural cellulose from plant sources like wood pulp or cotton and chemically modifying it in two ways. First, methyl groups (tiny clusters of carbon and hydrogen) are attached, then hydroxypropyl groups (slightly larger molecular chains) are added to the same cellulose backbone. This double modification creates a versatile ingredient that can thicken liquids, form films, and help bind ingredients together - properties that the original plant cellulose doesn't have. In the food world, HPMC works as both a thickener and film-former, making it incredibly useful across many products. You'll find it in everything from ice cream and frozen desserts (where it prevents ice crystals from forming) to gluten-free bread and baked goods (where it helps create structure and moisture retention). It's also used in vegetarian capsules, some processed meats as a binder, and in various sauces and dressings to maintain smooth, stable textures. As a semi-synthetic ingredient derived from plant cellulose, HPMC is suitable for vegetarians, vegans, and people following halal or kosher dietary guidelines since it contains no animal products. It's widely approved by food safety authorities around the world and is considered very safe for consumption. Because our digestive system can't break down HPMC, it passes through our bodies unchanged and essentially functions like dietary fiber, which some people actually consider a bonus benefit.