If that is not possible you can reheat the product until it becomes pourable.
If the product is pourable it best filled with a spouted beaker or jug. NB Make sure that you don't overfill your jars.
If you do, then, when pressing down the lid the product spill out from under the lid. If that happens you have to wipe it off immediately with a paper towel.
Storage and Handling
Aromantic's plastic bottles, jars and tubs are supplied to us in durable, airtight plastic packaging inside sturdy sterile carton boxes.
Our staff then repack the containers if necessary, into the different quantities that we sell, packing them into sealed plastic bags.
It shouldn't therefore be necessary to sterilise the plastic containers you buy from Aromantic.
However, due to plastic's propensity to attracting dust, you may find some dust in the tubs. Just blow it out with a hairdryer.
Using preservatives correctly in your products along with usual hygiene standards will make sure that your products are packaged well, without prematurely growing fungus and bacteria.