---
title: "Vacuum Steamer - healthy cooking - healthy nutrition - simple and healthy cooking"
description: "Vacuum Steamer - healthy cooking - healthy nutrition - simple and healthy cooking"
url: "https://www.apenta.swiss/en/info/info-on-the-cooking-process/basic-knowledge/water-seal/water-seal-1.html"
date: "2026-10-19T14:16:23+00:00"
language: "en-GB"
---

# ![Water Seal Basic Knowledge Cooking apenta vacuum steamer](https://www.apenta.swiss/images/Slider/Infos/Water-Seal-Basic-Knowledge-Cooking-apenta-vacuum-steamer.jpg)

## Water seal 1 (WS1)

No bubbles visible yet, the lid is hot and can no longer be touched.

Suitable for: Crunchy food, ratatouille and vegetables with a high water content such as tomatoes, zucchini, etc.

In addition, the WS 1 is a very gentle way of preparing fish.

### [back](https://www.apenta.swiss/en/info/info-on-the-cooking-process/basic-knowledge/water-seal.html "back to water seal")