Germbox: how to build it 


The germbox

You may be wondering what a germbox is: it’s a germination tray. Inside it is able to recreate that humid warm climate necessary for the seeds to sprout. 

Below we will explain how to build it, what materials to use and the most efficient germination method. 

(If you don’t have time to build it, click here GERMBOX to order a ready-to-use germination tray!)


What you need is:

  1. transparent box 
  2. a warm and dry place (a modem for example)
  3. heated cable (optional) to control the temperature

How do you build?

Simple and fast, building your germbox is very easy, just follow these steps!

First of all, avoid evaporating the water because the seeds must always be in a humid and warm environment to germinate. So check that there is no less than 20 º C, so we advise you to keep the box close to a source of heat so as to quickly heat the box (for example the internet modem). Finally, after finding a warm place, pierce the box to promote air circulation. Attention! Do not make them excessively large because the heat must not come out!

The best seeding base

To sow our chillies we recommend using the scottex method. To do this, you have to take some scottex or toilet paper and large plastic cups. 

First, fill the glass up to half with the paper well pressed inside. Secondly, wet the paper with water. To avoid putting too much of it, we advise you to pour the water inside the glass up to half and then to spill the glass to remove excess water! So you won’t risk wearing too much or too little!
This avoids mold and allows the water to evaporate properly.


The positive side of having large glasses, as well as countering the rapid evaporation of water, allow us to sow in our glass up to 30 seeds. 

After having put the seeds inside, it is necessary to cover the glass with a very light layer of paper (hygienic is fine) in order not to allow the water to evaporate. 

It’s time to put everything in your germbox, which will be placed in a hot area and where the temperature will stabilize. 

Advice! Write the name of the species of chili pepper on your glasses because otherwise you will not know what you have sown.

In fact, it takes five to twenty days to see the first buds, which are like white filaments, roots that came out of the seeds. When we notice this, we’ll have to transfer them to a vase. Make a hole in the 0.5 cm deep ground and plant your bud with the root towards the ground and not towards the sky! Keep the jar in the house until the bud has matured the first leaves. 

Now it’s time to expose your seedling so it grows.