To clean bottle oil containers easily. It’s always difficult to clean narrow neck oil containers.
Add 1 tbs salt,then dish washing liquid few drops then add hot water shake well.
It will get cleaned easily.
To prevent salt becoming soggy tie few grains of rice in a piece of cloth and keep it in salt container it will prevent salt from becoming watery
Watch “KitchenTips 9 எண்ணெய் பாத்திரங்கள பிசுபிசுப்புபோக clean oil bottles easily உப்புல நீர் கசியாம இருக்க” on YouTube