Dish soap and warm water and just keep swishing it around. Also using a brush, specifically a skinny brush for a bottle. But many syrup bottles have that little handle which can be hard to get to but the warm water and dish soap help to get in there when you swish it around for a while and rinse a few times.
Yeah, I recommend filling up the bottle about 1/3 to 1/2 full with a good ratio of dish soap to water, capping it, then shaking vigorously! That usually dislodges anything hard to reach, especially like those handle areas.
How did you manage to clean out all the syrup
Dish soap and warm water and just keep swishing it around. Also using a brush, specifically a skinny brush for a bottle. But many syrup bottles have that little handle which can be hard to get to but the warm water and dish soap help to get in there when you swish it around for a while and rinse a few times.
Yeah, I recommend filling up the bottle about 1/3 to 1/2 full with a good ratio of dish soap to water, capping it, then shaking vigorously! That usually dislodges anything hard to reach, especially like those handle areas.
Add salt to the mix and then you don’t even need to use a brush.
Salt + water + dish soap, close the bottle, shake, rinse.