How to Replace the Valve on Your Food Thermos

By LAKEN | Botellas y cantimploras reutilizables desde 1912 | Published: 2026-10-17

Category: How-to Guides

Learn how to replace the valve on your Laken food thermos. Step-by-step guide for P10 and P15 models, including what to check and when to buy a replacement.

Quick Answer

To replace the valve on your Laken food thermos, you need the correct replacement valve set for your P10 or P15 model. The process involves removing the old valve from the inner container and outer cap, then pressing the new valve into place. It takes about five minutes and requires no tools.

Why Replace the Valve?

Over time, the silicone valve in your food thermos can harden, crack, or lose its seal. This leads to leaks, poor temperature retention, and food spills in your bag. Replacing the valve restores the thermos to like-new performance and is far cheaper than buying a new container. The valve set for P10 and P15 models includes two valves for the inner containers and one for the outer cap, covering all sealing points.

What You Need

You only need the replacement valve set (product ID 1667441) and your Laken food thermos. No tools, glue, or special skills are required. The set is compatible with both P10 and P15 food thermos models and their inner containers. Make sure you have the correct model before ordering — the valve set works for both, so you can't go wrong.

Step-by-Step Valve Replacement

Remove the old valve from the inner container: Unscrew the inner container lid and pull the old valve out from the underside. It should come out easily by hand. If it's stuck, gently pry it with a blunt tool like a spoon handle. Checkpoint: The old valve may be brittle — discard it immediately to avoid mixing with the new one.
Press the new valve into the inner container lid: Take one of the two small valves from the set and push it firmly into the recess on the underside of the lid. Ensure it sits flat and flush with the plastic rim. A slight click or resistance means it's seated correctly. Common mistake: inserting the valve upside down. The flat side should face the lid, the raised side toward the container.
Replace the valve on the outer cap: The third valve in the set is for the outer cap. Remove the old valve from the cap's underside by pulling it out. Press the new valve into place, making sure it is fully seated. Checkpoint: Test the seal by closing the cap on an empty thermos and turning it upside down — no air should escape.
Reassemble and test: Screw the inner container lid back onto the container, place it inside the thermos, and close the outer cap. Fill the thermos with hot water, close it, and leave it upside down for a minute. Check for leaks around the cap and lid. If you see any moisture, remove the cap and re-seat the valve. A properly installed valve should create a watertight seal immediately.

Product Facts

Válvulas de Termos para Alimentos P10/P15: Compatible with P10 and P15 food thermos and their inner containers. Includes two valves for inner containers and one valve for the outer cap. One set covers all sealing points on your thermos, so you don't need to buy separate parts. The dual inner-container valves ensure both the small and large containers seal properly.