When serving guests with a tea maker, do not convert kettle capacity directly into a headcount. Cup size, the number of rounds and how much brewed tea you combine with hot water all affect the plan. The Swiss Plus STM-1622 stacked tea maker can be considered in this practical way: its kettle and teapot have separate roles and need separate attention.
Read the STM-1622 capacities separately
The STM-1622 stacked tea maker page lists a 1.7-litre kettle, a 1-litre glass teapot, a stainless-steel filter, touch controls, a digital base, 360-degree kettle positioning, keep-warm and Keep Boiling. Read each nominal capacity alongside the fill markings and the exact device instructions. These figures are not permission to fill either vessel to the rim.
Current STM-1622 gallery image. The teapot sits above the kettle, and both handles need to remain accessible during service.
Start with the volume of drinks you want to serve
Multiply the number of servings by the approximate drink volume per cup. For example, four 180 ml servings require 720 ml of finished drink in total. That is a planning example, not a kettle fill instruction or a guaranteed capacity for four people. Part of the drink may come from brewed tea in the teapot and part from hot water, and some guests may want another round.
Use the actual cups in your home for the first session and note what is consumed. A concentrated brew in the teapot requires a different share of hot water from tea prepared at drinking strength. Keep the tea type and brewing method consistent to understand changes in the result. One leaf quantity or brewing time will not suit every tea.
A checklist for planning one round of tea
Stage | What to establish | Practical benefit |
|---|---|---|
Before starting | Number of servings and cup volume | Estimate the total drink volume needed |
Preparing the kettle | Water required within the permitted markings | Avoid filling above maximum or below minimum |
Preparing the teapot | Tea type, brewing method and usual quantity | Make the result repeatable or adjust it next time |
During service | Tea and hot water consumed separately | Notice which vessel needs attention first |
Before another round | Remaining water and the condition of the tea | Plan again instead of adding water without checking |
After finishing | Unplugging, cooling and approved cleaning | Prepare vessels and filter for the next use |
What keeping warm does not replace
Keep-warm is listed for this model, but the feature name does not establish an exact temperature or permitted operating duration. Follow the STM-1622 instructions for controls, indicators and boiling-maintenance conditions. Do not infer a button sequence or permission for uninterrupted operation from the words Keep Boiling.
During longer service, check the remaining water as instructed and follow the approved stopping and refilling procedure before topping up becomes necessary. More water is not a substitute for managing tea quantity and brewing time. If the first round is not as you want it, adjust one factor next time, such as leaf quantity or dilution, rather than changing several factors at once.
Arrange the serving area and care for the parts afterwards
Choose a stable, dry surface with room to lift the upper teapot and the kettle. Keep the route for moving a hot vessel and the position of cups clear of the cable and table edge. The 360-degree kettle base helps with positioning, but it does not replace a secure grip on the handle or the hot-water precautions in the instructions.
After service, unplug as instructed and allow the vessels to cool before cleaning. Confirm the approved way to access and remove the filter. Use only the cleaning and descaling method and agent permitted for the model. The current product information does not establish a dilution ratio for a homemade descaling solution. Do not immerse the electrical base in water.
A brief introduction to the STM-1622
The video below is a short introduction to this exact model and helps show its appearance. Use the product instructions for the precise control sequence, initial setup and cleaning procedure.
If you are still choosing the layout, read the stacked versus side-by-side tea maker comparison. Current photographs and specifications for other models are available in the Swiss Plus tea maker category.
