Petal Glass Lid Steam Knob | Birss Houseware

This petal-shaped Bakelite knob turns an ordinary glass lid into a steam-release lid. Designed for a 32mm center hole, it vents boiling-pot steam quickly through the middle, so the lid stays cooler and cooks can keep an eye on the pot without lifting the cover. The flower-petal silhouette is crafted for the Korean cookware market, where a distinct, decorative lid handle sells.

Vents Steam Fast Through the Center Hole

A hollow center passage runs straight through the knob. Steam escapes through the 32mm hole the moment the pot reaches a boil, reducing pressure buildup under the lid so it doesn’t rattle or lift. This active venting keeps the glass cooler and makes the lid easier – and safer – to remove in a busy kitchen.

Fits 32mm Center-Hole Glass Lids

Built to suit tempered glass lids with a 32mm center hole. The mounting hardware is sized to that opening, and the clean black Bakelite profile sits flush on clear glass for a tidy, finished look.

Dual Stainless Washer, One Screw Mount

A through-hole stainless steel washer sits under the lid, and a second stainless washer joins the knob on top – the two washers sandwich the glass and are fastened with a single stainless steel screw. It installs quickly on a standard production line and grips firmly through years of dishwasher cycles and stovetop heat.

Petal Design – Made for the Korean Market

The knurled, petal-shaped silhouette is the signature feature – it reads as a designer handle rather than a generic pot lid knob. The styling is tailored to Korean houseware preferences, where a distinctive lid handle is a selling point both on the shop floor and on marketplaces.