Use the right size contrainer for your recipes
It's best to use a bowl that's around 2/3 filled with all your ingredients. Always make sure there's enough space to allow your ingredient to move around a little.
This will help and prevent splattering and spilling.
Start blending slowly
We always advice not to start your handblender directly on maximum speed. Start your handblender slowly and move up the speed gradually to avoid splatters or ingredient eruptions from sudden power bursts.