The bottle can be used repeatedly if hygienic principles are observed, especially when making your own cosmetics or when decanting larger packs into travel sizes. However, before each new filling it is necessary to wash the container thoroughly, rinse it and then clean and disinfect it with a suitable alcohol-based preparation, for example isopropyl alcohol IPA 99 % Isopropyl alkohol or plant-derived ethanol Etanol 96 % denaturovaný rastlinný. In this way you minimise the risk of microbial contamination and extend the service life of the filled product.

A plastic container made from PET material should not be exposed to high temperatures. When in contact with hot water or on a high-temperature dishwasher programme, the walls may deform, the mechanical stability may decrease and the neck may be damaged, which will negatively affect the sealing of the closure. Instead of boiling, we recommend gentle hand washing in lukewarm water with a suitable cleaning agent, thorough rinsing and subsequent disinfection with an alcohol solution, which is gentler for this type of container and at the same time effective from a hygiene point of view.

Before starting full-scale filling, we recommend carrying out your own compatibility test on a smaller quantity. Fill several bottles with your formulation, use the selected type of closure or dispenser and leave the containers for several days to weeks under the conditions in which the finished product will actually be used (temperature, handling, transport). Observe the sealing, stability of the plastic, any changes in colour or odour and the behaviour of the dosing mechanism. If even after a longer period you do not observe any leakage of contents, deformation or interactions between the material and the product, you can consider the given combination suitable for normal use.

If you decide not to use the bottle further, we recommend emptying it, removing any product residues and taking off any multi-layer labels so that the recycling symbols are clearly visible. Then sort the container according to the type of plastic indicated in the parameter table for the product (for example the relevant recycling code for PET). Place it in the container intended for that type of plastic waste. By sorting correctly, you enable re-processing of the material and reduce the amount of waste going to landfill or incineration.

To easily find a suitable bottle or other container, you can use the advanced filter in the categories on Handymade.sk. After clicking on the relevant category, a filtering panel will appear at the top of the page, where you can set parameters according to your own requirements – for example neck type, size, colour or packaging material. This allows you to quickly narrow down the selection to only those containers that are compatible with your product and intended dosing method in terms of shape and technical properties.